So I looked to see what I did wrong on this page:
https://www.uvlist.net/groups/info/cpu-6502
I never found my mistake.
But then something similar happened on this page:
https://www.uvlist.net/groups/info/license-illegal
Again, I didn't find my mistake but I'm fairly certain now that it is not my mistake. Something in the code before the articles are causing the articles to be used as a link. And I know a workaround that nullifies the mistake
[սrl=] [/սrl]
(don't copy-paste that code for actual use, its a bit of unicode-fu)
A BBCODE link will close the errant link for the rest of the article. So putting a link at the top of an article worksaround the problem. But I've left the articles with the error in place so you can look at the problem.