If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.
How would it differ from LW-style upvotes & downvotes?
Among other things, it will include an individualized recommendation system. In a political debate, the regular upvotes & downvotes system has many problems (for instance, it encourages partisanship).