Hello. 
  
Perhaps this has been suggested before, perhaps this has already been implemented and I just can't find it, or perhaps this would be way too much work ..... 
  
...but what seems like a good idea to me at the moment (Disclaimer: 2:50AM), is perhaps some sort of ban chart? 
  
A chart that shows the ban count, for a certain game, over a period of time (say 1 year)? That way you can see increases and decreases in bans over a longer period of time, that have perhaps gone hand in hand with pb updates or similar. 
  
Just a thought. Input is always welcome ;)