If they don't have any of this then they already don't have anything useful about me that I'd care to have removed. They would probably just take this info to create a more complete profile about who I am.
Not saying I feel comfortable filling out the form myself, but still. It's silly to expect that just a name or email tells them everything about you.
So why are they even bothering? Especially since they could collect much less while greatly increasing safe purge of your records if they wanted to. Targeting people for advertising is not a cursory half assed random thing to advertisers. It's their bread and butter. Why is this link even on hn?
I can't get too detailed with things but they're either a scan or they're going to do a very poor matching job and likely not remove very many people successfully. Not enough for this to not kind of feel very wasteful.
I'm under impression advertising data middlemen or "wizards of" are quite a bit more sophisticated than their questions would lead you to believe.. So yeah scratch that.
My conclusion now this is either a scam or done in bad faith for some reason that we aren't aware of yet.