The largest paintball forum on the net, I also believe it's the 15th largest forum in the world.
The forum frequently has more than 2,000 members online, and it's current record is 4,078. Most of the sections of PBN are full of good information, especially if you read the stickies. Normally, if you have a question in almost any forum, your question has already been answered in the stickies. Stay out of Small Talk, and you'll be able to appreciate the forum. However, if you do want to post non-paintball posts with dignity, wait a year so you can post in Old School Small Talk(OSST). PBN used to accept any amount of money for donation, and you would be allowed to search if you donated $12 or more. Now, they have something called Annual Supporting Membership. If you donate $30, or $17.95(if you were a current supporting member) every year, you will be a 2 year, 3 year, and so on ASM. The benefits are:
Private Members Only forum
No more 45 second rule
10MB of file attachments
More Private Messages
Two free Gold Ups
Five free B/S/T Trusts**
I personally enjoy the B/S/T forums the most, as they recieve a ridiculous amount of attention, namely the electronic gun section and Miscellaneous Equipment section. However, if you do use the B/S/T forums, read one of the stickies in the theft forum on how to avoid being scammed. Most of the sellers are honest, but you do see a few bad apples.
The rules on PBnation are very easy to follow, unless you like to make racist jokes or post pornography. Don't do that, and you'll probably be fine. Also, please learn proper English before you decide to register with PBnation. The moderators and administrators on PBN are very easy to deal with, and generally respond quickly when you report a bad post. However, some of the members they have to deal with are pretty much the scum of the earth, and those members are plentiful. So you have to be patient when you ask them a question.
That's about all for now, maybe I'll add more information later.
I visited PBnation because I found deer gore by searching Google.
I ventured into Small Talk once, and it was pretty horrible.
I actually believe that upping my thread constantly in the Talk to Mods/Admins of PBnation will make them respond more urgently to my question.