I had not nuked my account history, because while reddit went to shit for me, I still used it as an info source via search. And so I wanted to leave my posts/comments in case they add value to someone else, who still uses the platform. But with this, if I am not lazy, I just might. I don’t even care about the AI training bit, rather that it is Google AI.
I know people said reddit restored their mass overwtitten comments, but iirc this was a brief scare due to some problem with the tool used or servers or something. I think reddit even officially commented that they are not doing this.
Many people dont actually delete, but edit the content. Also, even if the data stays and gets used for training, so be it, not more you can do about it, at least I tried. But mass purging your account history still makes the site worse for searched topics and is the last bastion of resistance after shuffling off that cesspool.