Here are the post level rank:
0-49 posts: NOOB.
50-199 posts: Beginner PKMN trainer.
200-499 posts: PKMN trainer.
500-999 posts: Intermediate PKMN trainer.
1000-1999 posts: Expert PKMN trainer.
2000-4999 posts: Master PKMN trainer.
5000-1000000 posts: Profesional PKMN trainer.
1000000+ posts: Legendary PKMN trainer.
Hehehehe, the only challenge on the forum is to beat the 1000000 posts, almost Impossible.