All of the stuff I've put on the web, I put there for actual people to use. Crawlers and scrapers came around, and while I certainly didn't like it or approve of it, it was something I put up with. The only defense against it was to stop putting things on the web entirely, which seemed like an overreaction.
Now, however, the use of that data to train AI (something that I consider actively harmful to society in general and don't want to support in any way), is a degree too far in the pot that's been slowly coming to a boil.
While I do want to give back and contribute to the larger body of work available to people, I want it to be available to actual people. I don't want it to be available for training AI.
I don't see why that's such a ridiculous stance. However, it's not legally possible to both make a work available to the public and prevent that work from being available for other uses. That's a real shame, and that the only protection available to me is to no longer have the works available publicly, it's loss to everybody.