--- a/discussion.roff	Wed Jul 04 16:28:39 2012 +0200
+++ b/discussion.roff	Wed Jul 04 23:51:08 2012 +0200
@@ -1310,122 +1310,6 @@
 .Ci 0e46503be3c855bddaeae3843e1b659279c35d70
 
 
-.U3 "Mail Transfer Switches
-.P
-With the removal of the mail transfer facilities, a lot of switches
-vanished automatically.
-.Pn inc
-lost 9 switches, namely
-.Sw -host ,
-.Sw -port ,
-.Sw -user ,
-.Sw -proxy ,
-.Sw -snoop ,
-.Sw -[no]pack ,
-as well as
-.Sw -sasl
-and
-.Sw -saslmech .
-.Pn send
-and
-.Pn post 
-lost 11 switches each, namely
-.Sw -server ,
-.Sw -port ,
-.Sw -client ,
-.Sw -user ,
-.Sw -mail ,
-.Sw -saml ,
-.Sw -send ,
-.Sw -soml ,
-.Sw -snoop ,
-as well as
-.Sw -sasl ,
-.Sw -saslmech ,
-and
-.Sw -tls .
-.Pn send
-had the switches only to pass them further to
-.Pn post ,
-because the user would invoke
-.Pn post
-not directly, but through
-.Pn send .
-All these switches, except
-.Sw -snoop
-were usually defined as default switches in the user's profile,
-but hardly given in interactive usage.
-.P
-Of course, those switches did not really ``vanish'', but the configuration
-they did was handed over to external MSAs and MRAs.
-Instead of setting up the mail transfer in mmh, it is set up in
-external tools.
-Yet, this simplifies mmh.
-Specialized external tools will likely have simple configuration files.
-Hence, instead of having one complicated central configuration file,
-the configuration of each domain is separate.
-Although the user needs to learn to configure each of the tools,
-each configuration is likely much simpler.
-
-
-.U3 "Maildrop Formats
-.P
-With the removal of MMDF maildrop format support,
-.Pn packf
-and
-.Pn rcvpack
-no longer needed their
-.Sw -mbox
-and
-.Sw -mmdf
-switches.
-.Sw -mbox
-is the sole  behavior now.
-.Ci 3916ab66ad5d183705ac12357621ea8661afd3c0
-In the same go,
-.Pn packf
-and
-.Pn rcvpack
-were reworked (see Sec. XXX) and their
-.Sw -file
-switch became unnecessary.
-.Ci ca1023716d4c2ab890696f3e41fa0d94267a940e
-
-
-.U3 "Terminal Magic
-.P
-Mmh's tools will no longer clear the screen (\c
-.Pn scan 's
-and
-.Pn mhl 's
-.Sw -[no]clear
-switches
-.Ci e57b17343dcb3ff373ef4dd089fbe778f0c7c270
-.Ci 943765e7ac5693ae177fd8d2b5a2440e53ce816e ).
-Neither will
-.Pn mhl
-ring the bell (\c
-.Sw -[no]bell
-.Ci e11983f44e59d8de236affa5b0d0d3067c192e24 )
-nor page the output itself (\c
-.Sw -length
-.Ci 5b9d883db0318ed2b84bb82dee880d7381f99188 ).
-.P
-Generally, the pager to use is no longer specified with the
-.Sw -[no]moreproc
-command line switches for
-.Pn mhl
-and
-.Pn show /\c
-.Pn mhshow .
-.Ci 39e87a75b5c2d3572ec72e717720b44af291e88a
-.P
-.Pn prompter
-lost its
-.Sw -erase
-and
-.Sw -kill
-switches because today the terminal cares for the line editing keys.
 
 
 .U3 "Header Printing
@@ -1473,7 +1357,7 @@
 for all tools of mmh.
 
 
-.U3 "Suppressing Edits or the WhatNow Shell
+.U3 "Suppressing Edits or the Invocation of the WhatNow Shell
 .P
 The
 .Sw -noedit
@@ -1523,40 +1407,57 @@
 switch was intended to be used by front-ends.
 
 
-.U3 "Compatibility Switches
-.BU
-The hidden
-.Sw -[no]total
-switches of
-.Pn flist .
-They were simply the inverse of the visible
-.Sw -[no]fast
-switches:
-.Sw -total
-was
-.Sw -nofast
-and
-.Sw -nototal
-was
-.Sw -fast .
-I removed the
-.Sw -[no]total
-legacy.
-.Ci ea21fe2c4bd23c639bef251398fae809875732ec
-.BU
-The
-.Sw -subject
-switch of
-.Pn sortm
-existed for compatibility only.
-It can be fully replaced by
-.Cl "-textfield subject
-thus it was removed.
-.Ci 00140a3c86e9def69d98ba2ffd4d6e50ef6326ea
-
 
 .U3 "Various
 .BU
+With the removal of MMDF maildrop format support,
+.Pn packf
+and
+.Pn rcvpack
+no longer needed their
+.Sw -mbox
+and
+.Sw -mmdf
+switches.
+.Sw -mbox
+is the sole  behavior now.
+.Ci 3916ab66ad5d183705ac12357621ea8661afd3c0
+In the same go,
+.Pn packf
+and
+.Pn rcvpack
+were reworked (see Sec. XXX) and their
+.Sw -file
+switch became unnecessary.
+.Ci ca1023716d4c2ab890696f3e41fa0d94267a940e
+
+.BU
+Mmh's tools will no longer clear the screen (\c
+.Pn scan 's
+and
+.Pn mhl 's
+.Sw -[no]clear
+switches
+.Ci e57b17343dcb3ff373ef4dd089fbe778f0c7c270
+.Ci 943765e7ac5693ae177fd8d2b5a2440e53ce816e ).
+Neither will
+.Pn mhl
+ring the bell (\c
+.Sw -[no]bell
+.Ci e11983f44e59d8de236affa5b0d0d3067c192e24 )
+nor page the output itself (\c
+.Sw -length
+.Ci 5b9d883db0318ed2b84bb82dee880d7381f99188 ).
+Generally, the pager to use is no longer specified with the
+.Sw -[no]moreproc
+command line switches for
+.Pn mhl
+and
+.Pn show /\c
+.Pn mhshow .
+.Ci 39e87a75b5c2d3572ec72e717720b44af291e88a
+
+.BU
 In order to avoid prefix collisions among switch names, the
 .Sw -version
 switch was renamed to
@@ -1572,6 +1473,7 @@
 Although this rename breaks a basic interface, having the
 .Sw -V
 abbreviation to display the version information, isn't all too bad.
+
 .BU
 .Sw -[no]preserve
 of
@@ -1587,6 +1489,7 @@
 then refile will use the next available message number which
 is above the message number you wish to preserve.
 .QE
+
 .BU
 The removal of the
 .Sw -[no]reverse
@@ -1838,8 +1741,8 @@
 .U3 "MMDF maildrop support
 .P
 This type of format is conceptionally similar to the mbox format,
-but uses a different message delimiter (`\fL^A^A^A^A\fP' instead of
-`\fLFrom\0\fP').
+but uses a different message delimiter (`\fL\\1\\1\\1\\1\fP',
+commonly written as `\fL^A^A^A^A\fP', instead of `\fLFrom\0\fP').
 Mbox is the de-facto standard maildrop format on Unix,
 whereas the MMDF maildrop format became forgotten.
 I did drop MMDF maildrop format support.
@@ -3534,7 +3437,7 @@
 .Fu atooi()
 function with calls to
 .Fu strtoul()
-with the third parameter \(en the base \(en set to eight.
+with the third parameter, the base, set to eight.
 .Fu strtoul()
 is part of C89 and thus considered safe to use.
 .Ci c490c51b3c0f8871b6953bd0c74551404f840a74
@@ -3889,11 +3792,11 @@
 I learned about the easy and the difficult parts.
 Code is easy to understand if:
 .BU
-The influenced code area is small
+The influenced code area is small.
 .BU
-The boundaries are strictly defined
+The boundaries are strictly defined.
 .BU
-The code is written straight-forward
+The code is written straight-forward.
 .P
 .\" XXX move this paragraph somewhere else?
 Reading