They have not turned into a scam site. Your profile was probably reported multiple times for a trade involved or they found something shady in your open/closed trades. As far as the validation goes, they have been doing the ID level verification for a long time ago and this isn't something new. Are you sure you submitted the correct documents? I recollect verifying my ID a year ago and that's all. There wasn't any utility bill or other information necessary. Did you buy that LBC account by any chance?