I'm coming back!
Thanks for the compliment. I really liked doing it when I was staying on to of things :D
Your varied output of all the different things you are up to is pretty amazing
I think a digest email is a good solution for continuing engagement. Just a a nudge of what other people have been doing while you've been away. A day is probably too much but a week might be nice.
Yeah I would be conflicted about bubbling up stuff too. Maybe an alternate stream or feed for highlighting cool stuff but then again that may be discouraging to keeping up with things.