Since a lot of players tried this stuff, maybe newcomers aren't yet sure how the game works and need some help. xP
These are some common scams tried by players in game:
-Free membership
This a type of scam I see often in-game. A player, usually with a fake GM name, looks for higher level accounts (because they are so better than low level accounts)/lower level accounts (thinking they are noobs and they are easier to scam). They attempt this by offering a free membership for a long time: 1year, 2 years, or a permanent membership. They will ask for your account info and say that they will charge your membership in 10minutes. This is fake. You don't need to give away your ID and pass for a membership!
<< thanks to Nucleaon if I can't use that image I'll remove it. 
Unless it 's "GM Allie", "GM Santa", or "GM Faith", the person is trying to scam you. Never believe them. 
-"account update/level update"
This has happened once or twice to me. A guy said he was GM Santa, and he needed my account info to update it, otherwise he would have banned me. Obviously, this is a scam, because a GM would use his GM account for such business. Also remember that updates come when you run the updater (like in BOTS) and only real GM's can edit your account through the database. See below for more info about fake GMs and stuff.
More pics-"Buying your account for 50$"
A couple days ago, some guy asked to buy my account for 55$. That is obviously a scam. This gives you a chance to scam the scammer, as well as have fun with him/her. Even if you get an amount of $ for your account, it's against the rules to share your account/account info, unless you have a GM's permission. You must always ask for permission first, and chances are they will say no.
PS:If the $ thing doesn't work, he will try with different "payments" such as staff positions, free coins, gigas etc.
See more
IMPERSONATORS - How to recognize fake GM's from real GM's
If a player that has a GM name asks you for anything, be sure he is a real gm by checking a couple things.
Real GM's:
-Global chat (orange)
-One space in their name:
GM Allie= real
GM Allie= fake
Fake GMs
-Common black/purple chat
-Differences in their name
GM.Allie = fake because it have a dot
GM Allie = fake, has 2 spaces
[GM]Allie = fake, GMs doesnt have [] in their name
gm allie = GMs use capital letters
If you find out that there is an impersonator, report him in the appropriate section, even if they didn't try to scam you.
So I thought this could help newcomers as well as other players. Feel free to correct, suggest, give new examples of scammers, and anything else that comes to mind. Just please don't be rude.STICKY PLZ?!?
BIG THANKS TO BOBO FOR CORRECTING ALL THE GRAMMAR MISTAKES I DID