I had another thought about this...I find that people can be offputting in how they express what they want in a partner, by tearing down people who don't fit their criteria. It's the difference between, "Oh, I'm just not attracted to her/him" and "Ugh, what a loser/ugly person, how could they think I would date them". Some of the people who are very proud of having extremely high 'standards' can come off as really not nice to people who don't fit them.
Not being romantically interested in someone doesn't mean I get to talk about them like they're worthless. I think that's part of my problem with saying 'I have extremely high standards and a specific list of criteria' instead of 'I'm looking for someone who's perfect for me, who I am extremely excited about'. Sort of relates to the thread I started about the phrase 'too good for him/her'. The idea of some people being objective '8/10' or whatever is offputting to me.
I hope I'm making at least a little bit of sense. I just dislike the idea of 'ranking' people in that way. What's a great guy for me might not be at all great for someone else, and so on.