I think it's a great idea for a ratings system however it would be good to see a favourites for re-visitors, I often forget which teases I think are great so maybe some kind of cookie to remember your rating of the tease would be good to see?
I like this idea and would certainly use it if available.
A simple work-around eliminates the problem though. As a Firefox user, whenever I do a tease, I right click and use the "Open link in new tab" option to start a tease. Makes it easy to just close a tease if it turns out that I'm not interested in it, as well as making it easy to go back to the Webtease tab to 'favorite' a tease if I've really enjoyed it.