I am finding few guys who're working as a marketing manager or who have been part of the team in some ICO project and they selling his investors email database. Also, i got a lot of spam emails daily even if I do not subscribe to these projects.
I do not like this partaking in cheering spam.
and unfortunately 'buy requests' like these will only lead to more leaks from shitty ICO campaign managers / participants with an email database or anything that's sellable.