When you made your 200th post you became “Magistrate”. Here’s the ladder of titles:
0 - 9 posts: Condemned
10 - 19: Onlooker
20 - 39: Spectator
40 - 59: Guard
60 - 99: Assistant Executioner
100 - 199: Executioner
200 - 499: Magistrate
500 - 999: Governor
1000 - 1999: Tribune
2000 - 4999: Senator
5000 - 9999: Consul
10000: God-Emperor
At some point you can ask for a “custom title” of your own choosing.. I don’t know where that point is exactly, maybe at Senator level?? Depends how much you’re prepared to bribe the admins
(just kidding, they are incorruptible!!)