I'm a long time HN user. I work on privacy tech (as in I'm paid to work on it).

I have a Facebook account and use Instagram.

My reasons are many:

I believe it should be my choice what happens to my data, and don't particularly care if Meta has the parts I share with them.

I don't believe advertising is intrinsically evil, and in fact I think it's probably been a net-good for society.

I think Meta is a better steward of my data than ISPs or telecoms.

what about the abuse of advertisements to cause civil unrest, abusing data to control political elections, advertisements that break consumer laws. Facebook has shown it cares more for money than being a steward. Don't see how you can trust them.