I'm just amazed when people think stuff like that will actually work.

One of the few times I had a stranger attempt to pick me up that was pleasant was just after an interview. I thought I did a pretty good job and had a big smile on my face after, and he started the conversation by smiling, making eye contact, and commenting on my smile. At no point did he say anything crude, he respected my personal space, and just made conversation with me. Unfortunately, I did have a boyfriend at the time (who I was contemplating breaking up with but didn't want to do so via email while he was working crazy long hours) But we did have a pleasant conversation for the entire bus ride because he was just polite and friendly and not even remotely sleazy or gross. And when I said I had a boyfriend, he just kind of went "Oh well, nice talking to you anyhow" and left it at that.

If more guys acted like this and less acted like the creepers, things like the Rejection Hotline would not exist.