Sorry for your bad experience, that's not nice...Thank you for sharing this, I think it's a smart thing to keep in mind for those who are on online dating sites or considering to join.
I have been doing some online dating myself when I was younger, and there was definitely a lot of weird guys who found me. I met some of them, and I kinda figured out that if something seemed a bit off, it usually was. So I think this is an area where good use of intuition comes in handy. There
are good guys/girls on these sites, it just takes a little bit to find them sometimes
