Forums have a general hierachy:
Premium or Paying Members
They are alsp a popular target of hackers and crackers and a paradise for spammers etc.
Bob: 'My Cheese Forums rock! I have... 3 members!'
Bill: 'Wow, my Gaming Cheat Forums have 1003... no... 1005!'
Admin: 'The new General Chat Forum is out!'
Lead Spammer: *&79847394737xjfdlshf345740rscxjds!!! OMG!!!
Global Moderator 1: 'You take the Sub-Forum, I'll take the main!'
Moderator 2: 'Yes Sir!'
*The sounds of warns and bans can be heard above the spam*
Smaller forums tend to be more habitable, but the larger ones have many distinct and similar features. For example, within approximately seven seconds of the creation of a topic, you will have at least one reply, garunteed. Large forums also tend to spawn makeshift caste systems within themselves, and you're automatically a malefactor in the forum until you have a 4-digit post count.
A forum can sometimes be helpful, but normally they become a time consuming and frustrating thing if you pay too much attention to them.
Thread: Bush's speech
Thread: Anime pics!
Forums generally are not conversational, rather, they are contributory.