I suspect it is a mix of trolls who just enjoy being nasty generally and possibly some women who have been played along those lines. I did reply to the first one. Think I said "you might want to update your profile as it gives the impression you want a partner. It's clear you don't value anyone's attributes other than their ability to produce sperm and therefore only want a donor; I'm sure with your attitude you'll easily find a wanker for that job".
I didn't bother replying to any more and I shan't reply to this morning's effort. Of course, it proves they don't read actual profiles because if they did, they'd see what's really what as I always explain the actuality (without it being the first line).
Fortunately I'm in a good place. If I was at a low ebb, I would find it quite upsetting. It can get you down, though, being childfree by choice (because of how other people can be) or unable to have kids. Towards the end of the last OD stint I decided that if I tried OD again I would just look for childfree women. It's just safer and easier, especially when undecideds tend to ignore us because we're taking their decision from them. It's quite hard, sometimes. If you date someone with kids it flags up what you'd love to have had but can't. You don't resent that person or the kids but the emotions can be very conflicting. I suppose sometimes a hint of jealousy. Difficult to explain it.
I'm a godfather, that's OK. And my goddaughter's elder brother has adopted me as unofficial favourite uncle. That's cool too.