You haven't seen any spamming in the Random Chat forum? Do you even know what spamming is?
I believe the purpose of "Random Chat" is just another way of calling the forum "offtopic." Meaning the purpose of that forum is to have actual threads and normal conversations about things not related to every other part of the NISA board. Otherwise it'd simply be tagged as a spam forum, which more than 80% of it is as of right now considering all of the silly posting games I've seen done many times before on other boards.
I'll admit though, I probably shouldn't have this many posts at my current standing, since it wasn't too long since the new site came on board. Half of mine manage to be spam, the other half mostly in random chat.