Just so everyone's clear: it's not you, it's me.

I have 'fond' (those are air quotes) memories in the past of people pronouncing "I'm leaving!" in a huff, while taking a big pause at the metaphorical door (these are online communities we're talking about here, so all doors are metaphorical) to see if anyone cried out "Noooo! Don't leave us!"

There's a difference between doing what I just described, and recognizing that you are overloaded and distracted and just pulling the plug without telling anyone ahead of time.