Being an old time blogger, I got tired of anything remotely swap-y about five years. Too many tales of woe.
Besides, I have seven active WIPs (at least) and I don't use the chat function here. Not really feeling the vibe.
Oh, and the insecurity about our own work is an excellent point. The Groucho Marx sentiment of not wanting to belong to a club that would have me as a member. :0D Gotta love Groucho.