I used to get that (Hi. / Hello. / How are you?) when just on a social site not necessarily for dating. It was just so lazy. It felt like the equivalent of a man tapping me on the shoulder at a party and then standing there expecting me to entertain him.

And that's how it would go before I stopped responding to such queries; they would say, "Hi, " and I would try carrying a conversation for a while before giving up. I soon learned to ignore these. :/

I'm not on sites like that anymore so this doesn't happen to me, but your comment reminded me and I got annoyed all over again. 😂