Threads are closed if someone marks the “solved” button.
This feature seems designed for threads where people ask for help. Doesn’t seem appropriate for a forum in which 95% of the activity consists of bitching about politics.
Usually the checking of the box is accidental, as is clearly the case here:
I don’t think that feature was intended for this type of forum…its for more of a Stack Overflow style of forum where there can be an answer. This forum is open ended discussion…