Had I been on every blackjack forum for 20 years then I'm pretty damn sure I could come off as an authority on blackjack. Dozens of books have been written on this. You know the minutiae of posters from 10 years ago when it comes to blackjack. Of course you can fake it. Your problem is the bigger lies. You however don't address those and fall back. You may be a +EV counter. I would not be surprised either way. No one cares as that is not an accomplishment. You supporting yourself for 15 years in the same town is where people start to question.