I get forum messages through email.
Recently message threading seems to be broken in a way that it wasn’t
before - this means that a single thread may present as two, three,
sometimes four, separate threads, all having the same title.
(By “before”, I mean, in 2022.)
I don’t think this is down to any change at my end.
Has there been any change on the server that could account for it?
Another interesting feature is that for most threads in the past,
replies were all shown at “top level” as if they were all replies to the
first post.
Very often when a thread is (now) broken I see proper message threading
in the broken thread.
None of this is a major issue because in mutt I can easily stitch threads back
together, but it is a minor new annoyance. And it is definitely new.