It does surprise me that cyronics is not more popular than it is.
I’d like to add another consideration to your list of impediments: the difficulty of actually executing upon a plan to get oneself cryopreserved.
Let’s say you are not concerned with sudden, unexpected death—which should make things simpler and cheaper—but you do want a plan to preempt mental decline, eg. dementia. Assume also that you are completely confident that you can do whatever is required of yourself—the hardest part should be something akin to committing suicide but I think this would be less difficult for the sort of people who would consider cryopreservation (eg. no religious qualms about suicide).
Nevertheless, upon investigation, it appears to be near impossible in the current US regulatory environment to make this happen. And much worse if you are not in the US so you need to get yourself or your body/brain there.
Perhaps the development of cryopreservation operations in countries with less developed (or less well enforced) regulatory frameworks would help address this, eg. I think I read that there is now a company in Russia...
I would just take issue with how you’ve defined the problem space: the web is an internet platform that compete with other platforms like iOS, Facebook, etc.
I don’t think the problem of bad content is specific to the web. Actually I think that the web is where we are most likely to encounter stuff like LessWrong and Wust.
Yes, I’m being sensitive about this point—I love the web and am sad to see it slowly losing the tech and user battle to the tightly controlled proprietary platforms.