@trixter Having been on the internet since the 90s, when it was just basic common sense that you didn't use your real name, especially not if you're a woman, then the only social network place I've ever done so is Facebook - and I'm not on there any more anyway.
I've used a picture of me now and again, but usually don't. Given that I'm the one who has to look at my profile picture the most, I'd rather look at something else.