

If you are in the E.U. , California, or Illinois you may be able to delete your profiles. There are no guarantees as there are numerous lawsuits about this. Its probably been scraped by LLMs anyway.
For reddit, just slowly unfollow subs, post Loren Impsum nonsense, then stop posting/commenting. No one is giving up data they don’t have to.
Data is most valuable when fresh, so if you give them something new make sure it’s rubbish.
Also, do not stay signed into things. Facebook, Reddit, Google etc. You are easily tracked when you’re signed in by Facebook pixel and a bunch more.
The less you give them, the less valuable you are. You still have a profile though.
Bulk deletes are often detected and reverted. This may or may not be illegal in your jurisdiction, but as the likelihood of punishment is low, companies still do it. The E.U. has sporadically been good at enforcing fines. It’s still a cost of business though.
Good luck, and remember, Purple Monkey Dishwasher
That’s much better, but there seems to be some landmass southeast of greater Austria. That was proven to be a phantom island in the 1800’s once navigation improved. Please correct.