Everyone who downvotes links posted in the main section because they think it's a cheap way to get karma - you can just choose not to vote for them. Thus, trying to discourage people from posting to the main page for karma reasons is trying to make karma voting decisions for other LWers.
Karma is supposed to indicate which articles and comments are worth reading. Karma doesn't function to tell people whose opinions to respect, so people should stop worrying that other people are getting easy karma. Trust me - I have 15,000 karma, and people don't cut me any more slack than when I had none.
Curi's karma has repeatedly dropped low enough that his posting rate is moderated. If that's going to happen then it should occur based on the quality of posts not to him being socially tone-deaf about community norms of where to post things.
(Incidentally, there's another reason to downvote short link posts and the like in the main section- some people just have the RSS feed for the main posts and don't want every little link to show up).
http://vimeo.com/22099396
What do people think of this, from a Bayesian perspective?
It is a talk given to the Oxford Transhumanists. Their previous speaker was Eliezer Yudkowsky. Audio version and past talks here: http://groupspaces.com/oxfordtranshumanists/pages/past-talks