Earlier quoted context omitted.
There's no such thing as an account whose comments can't be vouched for. Nor is it true that there are many dead new accounts, if by 'dead' you mean 'banned'. But it is true that software filters sometimes kill comments by new accounts. That's not software that we want to have to run, or write, but it's necessary because of past abuses by trolls.
What I meant is vouching not reviving it, even when (apparently) multiple people vouch. I didn't mean to attack the HN mods, you guys do a good job here!
My initial response probably sounded like I took it that way—sorry! I often only notice that later.