Let's just say that the perceived value of your data might be more valuable than the perceived marginal costs of the ticket for the conference.
I don't think it's super nefarious. But yea, it would be a very valuable crackpot of data in a short time.
BTC Prague ticketing is much more privacy preserving than the Bitcoin Magazine Conference.
nostr:nprofile1qqs9n7lwwd5a7acnmwl6nw7mpzfvvt46j2fryc2udle8sldrsn9hwrcpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhszxrhwden5te0wfjkccte9e3h2unjv4h8gtnx095j7qgawaehxw309ahx7um5wghx6at5d9h8jampd3kx2apwvdhk6tcz7rqlr, ditch all the unnecessary fields you're collecting, or make them explicitly optional. Properly account for the long term security costs of collecting that crap.
