I would be more in favour of pushing SSC to have up/downvotes than to linking its posts here. I find that although posts are high quality the comments are generally not, so this is a problem that definitely needs to be solved on its own. Moreover, I read both blogs and I like to have them as separate activities given that they have pretty different writing styles and mildly different subjects. I tend I to read SSC on my leisure time, while LessWrong is a gray area. I would certainly be against linking every single post here given that some of them would be decisively off topic.