I think Mike is right about the commeraderie levels in PB : you get out of it what you put into it. People occassionally note that the online experience doesn't have that sense of community that they want. Well, it's up to us to creat it. Post news on your team page, post and respond to trade items and just basically put a little oomph into it.
If we want that kind of environment we need to create it ourselves ; no one can do it for you.