I've been in touch with lots of 2nd, 3rd and 4th cousins I found on GR and got lots of info and photos from them. I've only met one though, as I had no reason to go to the area where most of the others live.
Have to say, most of them were quite happy to believe, as I did, that we were genuine. The one I've met was much more cautious as she had had a bad experience with GR. We e-mailed for quite some time, me giving her snippets of info and she throwing names my way to see if I recognised them. Once she was happy that I was connected to her family, her g.gran is my g.aunt, she was happy to give me her address and she, too, has sent me loads of photos that her father had.
Lizzie