Please upgrade to 2.3 here.
The 2.2 and earlier branches are no longer being updated.
Email & Activity frequency
I bookmarked the API discussion last week, and there have been 40 replies in 7 days - which means that's how many emails I've gotten about it and how many alerts I got on my Activity feed here. Lots of noise, very little signal.
So I can either turn off bookmark emails (undesirable) or unbookmark the API discussion (also undesirable). May want a more intelligent notification system at some point.