I am familiar with Thessalonians, of course, and while I don’t disagree with what you said, I don’t think it’s quite the situation of a whole church selling its possessions and sitting around waiting for the Rapture.
Could have happened, I suppose, I just don’t think that the explicit picture given, the situation seems to be painted with a broader brush that could give rise to many different details.
I agree, it was not the whole church, just enough within the body to cause a problem. (Isn't that always the case?)
The only related item I can think of is not in Biblical times, but in the 1800's when William Miller set a date for the return and followers of his teaching did just that. When his prophetic musings failed to materalize his followers suffered The Great Disappointment.