I was surprised. Once, I got a not good experience in Flickr and that´s it. I won´t join into any group in there. I share, not grouping. That´s it.
One group request in my inbox. The admin said this and that. Then people became members. But a few days ago I read, „Thank you very much for your invitation. But I think I will pass it, because I want this site to be as it should since the first time it built. I like this site, because people share what they shots to everyone. No grouping. I hope, it remains like that.“