Are you a site Supporter - nothing shows in your profile to indicate that you are/were. .Not that it's 100% accurate
Did you recently become one? Or were you one previously but it expired? Was any payment made via the e-mail address we have on file for you - it's how we associate payment with your account.
That's why you are seeing ads.
If you have verification of recent payment from PayPal - it's possible we didn't get the confirmation so if you have the transaction number please send that to me or The Chairman.
As far as wig ads, google is targeting those based on a cookie it's seieing in you browser history and trying to provide related ad content.
If you just want to block the wig ads but not scuba-related ads - try Ad-Block,