I'm guessing there are almost as many reasons as there are MIA's. Some lose interest, some move on to other venues (Facebook, other boards), some get ticked/offended, some get busy, some are too ill or tired to post...who knows?

I notice that every once in a while someone will "check back in", which is thoughtful even if the person doesn't plan on jumping back in with both feet.

The more the merrier, I say.

And I hope Aarcyn is doing okay.