MSGID: 2:280/464.47 61e9302a   
   REPLY: 1:320/219@fidonet 61e8c6e6   
   PID: JamNNTPd/Linux 1   
   CHRS: LATIN-1 2   
   TZUTC: 0100   
   TID: CrashMail II/Linux 1.7   
   Andrew wrote (2022-01-19):   
      
    JC>> I think in hindsight it might have been better for FTS to leave it   
    JC>> as \## since legacy mailers used it and could not be updated, but   
    JC>> it is what it is!   
      
    AL> BinkD (the original implementation of BinkP) has always used \x## as far   
    AL> as I know.   
      
   That is my understanding too and that it is what I was trying to tell. Binkd   
   always used \x## (according to older source codes). I believe \## was never   
   meant to be a standard, but it was a small (but significant) mistake in the   
   documentation (FSP-1011) of the protocol. Then some authors implemented that   
   erroneous spec (which was still a proposal) in their mailers. For some reason   
   4 years passed until a new proposal by new authors (FSP-1018) was published by   
   the FTSC and another 2 years until it became a standard (FTS-1026). Meanwhile,   
   since 2004, the Wikipedia page on binkp [1] linked to the original FSP-1011   
   [2] until I edited the page yesterday and changed it to FTS-1026.   
      
   So it's not that every mailer used \## before FSP-1026 and then deprecated it   
   and changed the escape sequence to \x##.   
      
   Fun fact: FSP-1011 was written by the author of Binkd (Dima Maloff) and the   
   author of Argus (Maxim Masiutin). Binkd used \x## and Argus \##. If they were   
   confused and unable to document the correct escape sequence, no wonder that   
   others made the mistake too.   
      
   [1] https://en.wikipedia.org/wiki/Binkp   
   [2] https://www.ritlabs.com/binkp/   
      
   ---   
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