The Community thread is the thread where off-topic discussion is allowed between board goers.
Created originally by Whiskid in the early days of the Pikmin Baord, it has been a long term survivor and one of the only threads to last so long. The first Stupid Question thread may reign superior in long-term running, but it has since been locked, and can be easily overtaken.
The use of the Community thread is not only for conversations, but an insight to older user personalities, lifestyles, board style, board history, world history and so on. This means it is a great asset for information about the eras AS, but not helpful for much BS.