Websites that perverted old men (50s to 70s, or above. i don't know.) use. They seek out 20 (or lower) to 40 year old women on those types of webpages and ask them for neuds right as they DM the girl. (either that, or they ask to hook up instantly because they want to get laid. lol)
Man: Send neuds, the dating website won't care.
Girl/Woman: Ew, no. Weirdo.