On line dating is like shopping. They try one on and think...hmmm..maybe I can get a better deal, so the ones that stay on line even when they say they want to be with you, they are still shopping. I had that happen over and over again and then I decided to be just like them. That's right...try them on and keep shopping. I did not take any one of them seriously when I went to meet them, just viewed it like I was going to meet a friend, no expectations...until I finally met one and he too stayed on line 'shopping'. I really liked him but did not get too excited so that when he did disappear, I was okay. Believe it or not, he came back a couple of months later, but I had already FINALLY met the guy I am currently seeing that I met on line. He is wonderful and we both removed our profiles at the same time, together :D
I am no long shopping and neither is he, but it took a lot of searching and keeping my heart strong.

I agree..one guy I met seemed he wanted to go out with just me and told me so. I was very interested but still made sure that I guarded my heart. I was SURE he was just seeing me but he kept his profile up. I told myself it was because we were not a 'real' couple (long distance) and that in the 'real' world people look too, so it can't be THAT bad, so I kept my profile up as well.
I found out later he was dating others and it was a really good thing that I guarded my heart because he could have easily broke it. Yes, I was hurt, but then I thought this ..WHY would I want to be with someone that I couldn't trust? If he can't be with me and be trustworthy, then he is isn't good enough for ME. I deserve better. I WILL find better and I did.
I think on the 'sites' if someone is not ready for a relationship but just want to date to be social or to discover what they want, then they need to concentrate on the other people on the 'site' that are looking for the same thing, not the long-term people.