Thanks, I'll investigate how to set format=flowed in Seamonkey. I've never actually read an RFC before.

I went with

    wget https://tdarb.org/ -O - | markdown | lynx -stdin
    

for now having noticed that the text files are in Markdown format. I was curious as to why the text files on the server were not hard wrapped to a fixed width. I tried the 'shinobi' script locally with some dummy posts with fixed width text and it worked ok browsing both the text files themselves and as rss/xml feed in Seamonkey.