i know junior member, senior member and forumite
but at how many posts are they or which other ranks exist

Forum ranking system;
0 - 29 Posts - Junior Member
30 - 499 Posts - Member
500 - 1499 Posts - Senior Member
1500 - 2499 Posts - Forumite
2500 - 3499 Posts - ub3r
3500 - 4499 Posts - Raconteur
4500 - 5999 Posts - Chatterbox
6000 - 9000 Posts - Elitist
9001+ Posts - Flagrant Meme

Note: If you have ToriPrime you can name yourself what ever you like.

thank you very much