Exactly. Of course you shouldn't be so picky that no mortal is going to meet your unrealistic standards, but you should definitely be picky enough to separate the wheat from the chaff. Appealing to everybody when you're really just looking for one person means you're taking on a lot of pointless work. Let people select themselves: make sure your profile is specifically about you, and not some generic person of your gender. Don't be afraid to be off-putting to people you don't want to date. Don't claim to love partying if you don't. If you've got a weird hobby that would put a lot of people off but that you want your match to accept, definitely put it in. If you're looking for a long term relationship, put it in.

Some people just aren't interested in that stuff, so why waste time on trying to date them?

And as far as I'm concerned, this goes equally for both men and women. From my chats with women on dating sites, the behaviour of a lot of men is totally irrational to me: they just message every woman. Lots of women are inundated by messages from men who didn't even read their profile. This makes the dating experience for women extremely frustrating, as there's piles and piles of crap to wade through. So they end up ignoring most messages, which makes the experience also frustrating for men.

My advice to women on dating sites is to just ignore the flood of incoming messages from men you didn't contact, and instead look for interesting profiles and contacting them. I think that massively improves the experience for both men and women.