Well, in Germany one site (www.heise.de) made some nifty code to circumvent the specific problems of the like-buttons; it is open source and here available. It uses a two-click-solution; first you click on a button similar to the FB-ike-button; then you are forwarded to a second page with the real button.
Facebook tried to argue that doing this violates its ToS (not doing this would violate law in many countries).
http://cyberghostvpn.com/blog/2011/09/newsflash-facebook-doesnât-like-privacy-2/
Using a distinct button for first click seems to be OK.
Currently, LWers get +1 karma for a comment upvote, and +10 karma for a main post upvote. But clearly, there are other valuable things LWers could do for the community besides writing comments and posts. Writing isn't everyone's forte. Why not award karma for doing productive non-writing things? It's probably not optimal that karma and the community status that comes with it are awarded only for the thing that myself and a few other people are good at. For example, I really wish LW could award karma to programmers for improving LW.
The challenge is doing it fairly, in a way that doesn't alienate too many people. But there might be a workable way to do this, so let's explore.
Perhaps tasks could be assigned karma award amounts by LW editors (Nesov, Eliezer, Louie, etc.), or even just one person who is appointed as the Karma Genie.
Examples: