NEGATIVE VOUCH!
So while completing some games on CS:GO on one of my steam accounts this little chappie decided he was going to change all details on the account (including the password and email) and then send me a skype message saying:
I gave him permission to add some friends to play with and change the name, but this was just outrageous. If you purchase boosts make sure its with him in the lobby and not on your account. Just a headsup.