We currently have 4 views screens for each account.
Home Document - the latest content on this site
Site Feed (or, General Feed?) - how as the content on this site changed, when has this account been mentioned, and what are the latest discussions in this site
Profile Feed - What has this person done, across all known sites?
Contact - Shows web-of-trust information
I think we are planning to merge Contact and Profile Feed into one unified profile view.
So the question is, how can the user switch between these 3 remaining screens? Right now this is terribly confusing and as a user I feel trapped.
Tabs
A simple answer to start the discussion is to do what Linear does.
But I don't like this option because it clutters the top bar. So I would prefer tabs on the bottom (when there is enough screen space)
Selector Dropdown
One idea that I've talked about with Isabella Velez is a dropdown in the bottom right corner, where you can switch between screens for a given account.
As a side note, I think you should be able to link to any of these screens. And this is why its important to decide on a URL format.