->  As for semingly useless kludges, many usenet and e-mail gateways preserve a 
->  or many RFC header line in kludges. Nobody complains there. 
  
That is what I had to do with my newsgroup server. I actually rewrote 
the JAMmb API to accomodate a backbone news feed. In it, I have logic 
that is ^aCOLS exists then force the Content-Type to non-flowed. 2nd 
piece of logic is (if none of the body has a Hard CR prior to column 60 
in what appears to be a paragraph - then I turn on format=flowed, 
otherwise I still keep that off. 
  
In weeks of testing, I have found that 99% of the time, that logic is 
spot on - allowed newsgroup readers on laptops and mobile devices to 
read BBS_ADS correctly, the FILE listings, versus these type of 
standard messages. (right now I am on DOCs BBS, as my Fidonet flow is 
still dead).