This account had a negative trust before joining the 1xbit signature campaign, so it was the only possibility to take part in a campaign that will pay honestly and steadily in Bitcoin.
Ah of course. Since the account you bought from a scammer used it to scam, the only possibility for you is to use it to advertise for a scam casino.
Too bad you didn't have an opportunity at some point to not use a scammers account to advertise for a scam casino. Such a pity.