Spam aside, of course... but the only online "place" I consistently get a sense of belonging is my email inbox.
The multiple recipients scenario aside, of course... but when I receive email from someone I feel special, singled out, worthy of a writing effort known in advance by the writer to reach a paltry readership of one, worthy of private/special/personal news/insight/revelation, and invited to share my thoughts/feelings thereupon.
It's just... wow... *shame* on you "world wide web" for being so much lest whilst perpetually claiming to be so much more - never mind the side struggles with cookies dialogs, advertising, popups, beggings to subscribe or otherwise create yet another account, or to take yet another survey....