Actually, a surprising number of people over on FSTDT are Christians themselves. It is true that there are people there that spout hatered and venom at anything or anyone that goes against what they hold to be true, but the same could be said of this site, as well.
The only way to get a comment on FSTDT is to say something truly vile and hateful, and if you said such a thing in the past, you have redeemed yourself by expressing regret here, so I wouldn't worry about it being over on FSTDT. In fact, since you don't have to register there to add your own comment, if you wanted to you could always go there and explain the context. You could even express regret over the comment there, which would really throw some of the posters there for a loop; they aren't used to seeing people who are capable of admitting when they have said something regrettable.
But in any case there is no point bemoaning the fact that you are being quoted and mocked on the internet, or "warning" others that they may be as well. What good would it do? It upset you to learn it, and what can you do about it? Nothing at all, really, which means that the only thing you do by telling others to go google themselves and FSTDT is to invite them to become as upset as you are. What's the point?
Don't worry what hateful and mocking things others say about you unless what they say is true. If it isn't, or it isn't anymore, then just let it go like water off your shoulders. The moment you hit the POST button you are putting your words out there and pretty much anyone can do whatever they like with them. To be on the internet you have to develop a think skin pretty quickly.
