Why would you log out to begin with? Also... why would you need to find your own signature? Just make a bookmark in your browser? Then you can access it anytime without even needing to come here.
Do you mean visitors of this forum can't see other one's signature? In this case, google bots can't see signature here too. Then why should we put signature here?
Good question... if you have a signature because you think a search engine will ever see it, you are very mistaken.
Because Google bots are the only ones who can see signatures. Even premium members here in this forum can't see them.
Great discussion going on.... I also some times think about this, Actually it's only to see login user and paid members,by the way it's no follow attribute.