Why are there so many threads about negative aspects of sessions?

Sessions are fun, musical, and social. That's why we have 'em.

As for annoyances, pretty much everyone except me and thee can be annoying sometimes. And I'm not so sure about thee.

But seriously, the "problems" are the same the world over. Whatever is distracting your attention from the music. Invariably, someone who is not as developed in musicianship (not the same as playing ability) as the person who is annoyed.

W-O
Hey, I'm going to meet Jerry Holland this morning, he's coming to do a workshop at our fiddle orchestra rehearsal. Whoops, thread creep.
How annoying. Must be my insufficiently developed threadianship.