Very few server actually ban or kick high IDs on sight that I know of, I bet it actually happens more to people with low IDs. The thing is, don't act like you've owned this game for three years. It is annoying when a high ID joins my server, and I ask, "hey, when did you buy blockland" because I'm just wondering how new they are, and just to get an idea of the current high ID, and they respond "ive ownd ths game for 3 year". Just don't act like a n00b, and don't be affraid to ask questions about the game.