Good point, barb, and I stand corrected. In fact, I even went on to basically insinuate that the pictures matter, by mentioning what impression I'd get from some of them.
What I guess I was trying to get at was that it sounds like people take these dating site photos more seriously than I'd have thought, in terms of actually HIRING someone to do them. I don't think the "right" photo for a dating site is so much about how professional the photo looks. The OP seems to be really obsessed with getting a photo that, I don't know, makes him look like the next candidate for People magazine's "Hottest Bachelor," and that's not necessary, imo. A "not perfect," simple photo that shows a person really being themselves would draw me in faster than a professionally done, great quality image that looks super posed and like the guy is trying to hard to look "attractive."
Just be yourself.
Now, if you're interested in dating a skilled photographer--yeah, you probably want a photo that looks like it was taken by someone who knew what they were doing.
Of course, back to the issue of these being taken by a complete amateur who didn't know what they were doing--a GOOD pro photographer would not only get the lighting right, and eliminate the distracting backgrounds, and that sort of thing--they would also know how to work with you to end up with some candid moments that show YOU being comfortable with who you are.