You're right, it looks like the sidebar is SLIGHTLY undersized... I'll try to fix that.On the User pages, the Following and Followers boxes are awkwardly sized. They only allow two user pictures across, but it looks like they were intended to hold three. If anything were to be done, I'd say that the user picture sizes should be smaller, allowing for three across.
I know it's little, but this is a thread meant for things like this I guess.
Double post merging is definitely a possibility.