On the profile page, it would be fine if the accounts could be ordered by recent activity.
I have 10 accounts across the Stack Exchange network and was recently very active in an account with a low number of reputation. This account is thus not in the top 5 and I have to use the "view more"-button. An ordering button seems somehow to be more user-friendly though.
I would propose order buttons (as already found in other profile sections) for reputation (default), activity and perhaps inbox.