I can't believe it, after so long, and when I just found you again, you're about to leave! I'm really sorry for what happened with the exhentai thing, knowing how much you wanted to keep it safe here of course, just hope this isn't the end of our journey with Lucy and Meddy.
Maybe there's no a reliable way to fix it over there so far, and you may need time as well, but that guy mentioning pixiv has a point, there's something called MyPixiv over there, where you can actually hide your questionable submissions from everyone, and decide if some are trustworthy to let them join to your "MyPixiv" circle.
I know this may don't sound as a definitive solution per se, but please think about it, I'd hate to lose such a talented artist like you for good, all because of this mess.
And for your concerns about some people you know finding your stuff, it might won't ever happen, or they don't really care since it's you, and it's not like a questionable gallery could make them distant or anything, and if this happens, means they didn't appreciate you enough to start with so, why would you want them at your side? If you think you may miss some contacts or business because of it, maybe you could find something better somehow, without restrictions doing whatever you always wanted to try, even if it was too extreme for vanilla tastes.
Sorry if these advices sound pretentious, which is not my intention at all,
but just want to let you know you're not alone and we want to lend you a hand too somehow.