Welcome to LessWrong old friend. :) The comments here have a karma system. Generally they get upvoted for seeming useful and downvoted for seeming useless. There is no moderation really, but if you lose more than three karma on a comment, it goes invisible unless someone chooses to read it by clicking the plus sign. It is a useful way to hone your debate/explanation skills. Also be sure to check out the yummy Sequences and learn to be more rational.
I recently found something that may be of concern to some of the readers here.
On her blog, Melody Maxim, former employee of Suspended Animation, provider of "standby services" for Cryonics Institute customers, describes several examples of gross incompetence in providing those services. Specifically, spending large amounts of money on designing and manufacturing novel perfusion equipment when cheaper, more effective devices that could be adapted to serve their purposes already existed, hiring laymen to perform difficult medical procedures who then botched them, and even finding themselves unable to get their equipment loaded onto a plane because it exceeded the weight limit.
An excerpt from one of her posts, "Why I Believe Cryonics Should Be Regulated":