I think this is a really terrible idea - human beings HATE waiting. The existing system was working fine. It amazes me how this site can break things by trying to fix things that aren't broken.
Perfect example: I just came and wanted to play at 7:16. Next session was at 7:21. I wrote some emails, made coffee. Now 7:22. Whoops, can't do anything, just have to sit here. I am literally boggled that you thought this was a good idea.
Another example: I can't join an Arena match, so I enter a regular match. I'm playing my regular match and see an Arena game is coming up. I try to register - oops, can't play two games at once? And why not? It would be so easy to have two browser windows open.
Perfect example: I just came and wanted to play at 7:16. Next session was at 7:21. I wrote some emails, made coffee. Now 7:22. Whoops, can't do anything, just have to sit here. I am literally boggled that you thought this was a good idea.
Another example: I can't join an Arena match, so I enter a regular match. I'm playing my regular match and see an Arena game is coming up. I try to register - oops, can't play two games at once? And why not? It would be so easy to have two browser windows open.