Custom rank is no big deal. It's just a little word under your name. It's not like it's something you earn. It's just a free gift you get for being here 8 months. Free for everyone no matter how often you post.

Aside from whether we should restrict it, there's the issue of whether it's even possible. We could set it so you need x number of posts to get it, but that promotes people spamming just to get it. We got rid of the post requirement because it attracted spammers and jerks. What's the right level of "work" you need to get it anyways? 500 posts? 1000? 2000? What if you have 500 posts in one month, then leave for 7 months and come back? Should you get it? What if you leave for 7 months, come back and get 500 posts in your 8th month? Should you get it? It would be a nightmare for us to keep track of that junk. And like BoB said, post counts are no longer accurate, or even visible. We want nothing to do with post counts.