The danger that's concerning people (rightly or wrongly) isn't that LLMs are going to be an intermediary to your website. It's that they'll be the only thing reading it. No one will ever read your post or know what you wrote. The only consumers will be LLMs, they'll train on a version that strips out you as the author (probably more due to expedience than any sort of malice; it's not like you're famous, are you?), and your idea might get embedded into a set of model weights somewhere. No human will see a byte of it.

Are you actually saying you'd be OK with that?

There are different types of writing. If we depend on people writing because it's enjoyable at some level, we're going to lose writing that's important but also a bit tedious.