Today's announcement re Thundermail brings me back to an old gripe of mine - which doesn't bother me, but might one reason some new users are put off. Many email users are used to the full-fat reply header which they have been used to in Outlook and other email clients/webmails. (From/To/Subject/Date/CC etc) When a new user first replies to an email, they will only get the basic Unix legacy "On [date] [name] said:" This took me back when I first used TB, back at something like v7, but I soon found the Reply With Header add-on. However, the existence of this add-on or even its name vs. function is not obvious, and a new user may simply find that the cut-down header does not meet their requirements and simply looks elsewhere for a client. If the ReplyWithHeader add-on functionality ever disappeared, I would also be quitting TB (though finding an equally good program would be hard, but not impossible.) Now, the code to do the full reply header is already in TB, as it is placed into a Forward message. So, as I see it, TB could very usefully (a) default to the full header for replies as well as forwards, and (b) include a simple long/short reply header option under Preferences - many mobile Apps already have this (Bluemail for example). This would remove one possible negative experience for a new user.