I'm uncertain of what to do.

Something clean and clear shines out: if people don't see any more of my slavery posts, will they think that slavery isn't happening, or that I changed my mind about it, or will they think that I was censored? Probably not the latter... even though the latter is true.

In my model of the multiverse, this is probably a simulation, and this particular timeline is likely to go quite poorly.

Regrets

Its an interesting exercise for anyone in a position like mine to wonder what errors I personally made to cause this state of affair, and whether I could send back any message that would fix them, and what possible messages I could imagine coming from the future to avoid making even more errors in the near future.

Not necessarily positive acts, but also potentially errors in "having performed the null action when some more energetically noisy action might have been in fact Correct" (perhaps a perfect duty, or perhaps an imperfect duty whose performance is merely supererogatory, or whatever).