There are 3 types of guests..
- Some guests are there to check out the games before deciding if they wish to register. Let's call these "Real Guests".
- Some guests could be MODERATORS checking up on you! :O . Let's call these "Sneaky Guests".
- Some guests are higher rated players who wish to practice without having to worry about losing points. Let's call these "Fake Guests".
Guest accounts change every time they log on, so no point in them having points or anything because it would just reset once the log off. The point of a guest is to encourage them to register remember.
If you really worry about guests strength, don't play them.