offtopic.com which had registration closed for a large amount of time in 2002-2003ish? It was still a massive forum but the community kind-of "solidified" and d

offtopic.com which had registration closed for a large amount of time in 2002-2003ish? It was still a massive forum but the community kind-of "solidified" and didn't grow larger, for the most part quality was pretty good. It seems to me that once critical mass is reached, closing registration is a good move. It works for other quality-oriented social sites like Oink too.