I can, somewhat, understand the reasoning to have account related things (pwd, language etc) separated from project related information. But three pages?

I find it very confusing and can never remember which one it is I'm after and usually end up clicking them all. Maybe because I seldom use them, but then again, this might be why...

The pages "My page" (configurable page blocks) and "" (activity) could easily be merged into one (e.g. having "activity" as a page block), with likely the "My account" page being a sub-page of that, merged page (or vice versa).