Your point is good, and I upvoted gwern--not because his comment was particularly good, but because it didn't deserve to be in the negatives.
To add on to what you said: I don't think people on LW should be punished for telling confused newbies to do some web searching.
Edit: BTW, gwern, thanks for posting the ESR link. I found it interesting and probably useful.
So, apparently appsumo is having a custom reddit bundle, a bundle meant to appeal to redditors, and 10% of the proceeds get donated. On the surface, doesn't sound _that_ interesting, except...
Take a closer look: http://appsumo.com/reddit-special-deal/ and find that the recipient of the donations will be... SENS!
I find this to be an interesting development. It wasn't the "custom transhumanist bundle" or "the custom sens bundle" but "the custom reddit bundle". Yes, "reddit" doesn't, in and of itself, count as extremely mainstream as such, but I'd say it's still an interesting development.