Ooh, and I love how he digs at your age!
Didn't you know that at your age you should be GRATEFUL for any attention from ANYONE AT ALL??
EWWWW. You were totally right to tell him off.
I'm also skeptical that a polite "no thanks" is ever worthwhile. Usually it prompts people [men] to respond with things like, "Aw come on, gimme a chance", or to say nasty things.
Yesterday, in response to me telling someone he lived too far away, he kept begging me to text him, giving me his number, suggesting he pay for a hotel in my area [despite no casual sex on my profile], etc, until I blocked him.
So, I'm all for ignoring instead of politely saying no.
Single, straight, female, solo, non-monogamous.