Not a big problem, just wondering.

I just noticed that Cile made a post, but the little green light next to the account name was not lit up, I didn't think much about it, just thought Cile logged in with it turn off. But, when I scrolled up to a post I made, the green light was not lit up either, but when I scroll down to a post I just made it was lit up. I would assume that the little green light would be lit up on all my posts when I'm logged in.

Also, sometimes I log in, it says thanks for logging in, and it brings be back to the previous page I was at and I am not logged in, so I log in again.??