How do you determine if a forum is bigger than another? Number of posts? threads? Members? Some undetermined factor? In terms of members, Tip.It is larger. We have 137,347 members, while RSC has 81,622. For posts, RSC has 1,214,903 total posts. Tip.It has 1,410,722 articles, which I assume are threads, so we would have more posts as well. But seriously, how do you decide which is larger?