People who believe that their identity is private and - so far - not known by any 3rd parties worldwide are just naive. (no offense)
Therefore, selling - already known - data seems pretty reasonable to me.
Yeah, but how much personal data are we talking about here? Name & address & photo are pretty much public information that I wouldn't consider too much to give out (
if the reward was big enough). Phone number/e-mail are iffy. Anything beyond that, like social security number--hell no. I've never done this for a giveaway, so I'm wondering if it's easy enough to give them false information and still get whatever it is they're giving away. I'm sure plenty of freebie-hounds are at least trying it.
I've never participated in any ICO but judging from the KYC prank thread there were a few guys who submitted pictures of themselves holding their id cards, so probably a lot of ICOs require a selfie and a copy of your valid id.
With that information you can do a lot of things, from opening verified accounts on betting websites, paypal, amazon, eBay, buying debit cards, a lot, a lot of things even in the hands of a newbie that had just stumbled upon it.
And not even going professional here, you can use them exactly for the thing you thought about, to create more accounts on other ICOs airdrops that require KYC
But once we're past the point of amateur scams, ignoring the fact you can outright sell them, you can use those ids for much more, from actually emptying the victim's bank accounts to taking loans on their names. And those ones are going to hurt you even if you're dirt poor.
This has surfaced for quite some time now and I don't think anyone in their sane minds would actually send KYC for a few pennies, unless some few (a lot, you have no idea how many) desperate people who think that this is a good idea and that KYC is somewhat negligible for them,
There was one little mistake in your post. I fixed it for you!