I am working on the feature now. But it may take quite some time to go live, since I am working on the uber secret new version of u2start which will come out when the album is out, out of spite
The "hover nightmare" I spoke about would happen only if the whole avatar or, in a lesser extent the username, brought up a huge box each time they were travelled over by the mouse. If the "hoverable" zone is small that woulnd't be a big problem.
Aha, good point, I also prefer click as I pointed out before
I have another idea regarding the "send PM", it might be completely useless but it just popped in my mind:
maybe the "send PM" link can be designed so it doesn't redirect you to a fresh "Compose PM" page (getting you out of the forum page), but instead the background dims and you can write the PM in a pop window? Don't know if I explained it good enough And maybe I'm too influenced by Facebook where you can write pms in a pop window without going out of your current page...
Ah, I didn't know you were working on that RIGHT NOW, I though it was a mid-time project... Forget about the pop-pm feature, it was just a faint suggestion, nothing essential
You brainstormed this thing quite fast and well! Not much to add...just thought you could also let each user choose what to be shown in their hover thingy through their profile. Like a checkbox list of info that can be displayed.
As for We're The Millers...went to see it and all through it I was thinking "this is hilarious...but not a date movie!!" ...glad it went fine tho Fabian! Really funny movie tho...
And maybe I'm too influenced by Facebook where you can write pms in a pop window without going out of your current page... 
