> You paying just signals that you're someone to push more ads to and to harvest more data on

No, qqtt is correct that if you're paying, you get a vote. It may not be all that much of a vote, but it's more than you'd have if you weren't paying, and Meta will pay attention to it.

For a recent example of how this works, consider that with the post-October-7th wave of pro-Palestinian activism on US college campuses, a lot of rich Jews moved to squelch it as best they could -- not by offering new donations conditional on universities adopting their favored political positions, but by threatening to suspend their existing, habitual, "unconditional" donations.