You're proposing removing the bar entirely because it is not high enough.

Incorrect. I said that I see no obvious answer as to whether to remove the bar -- that's the (a) part. What I'm proposing to do is definitely to educate people about the existence of the bar and the fact that they shouldn't be voting on porn, or contentious political topics from an account with their real name, or etc etc like that.

More than 1% of the currently active Lemmy users are actively running a server (it's 1.4%, 649 active instances out of 45k MAU), so I think the number is definitely less than 99% of people who wouldn't know how to do it in the first place. The broader point about it being fairly difficult / fairly rare to have the knowledge, I can agree with, but I wasn't saying necessarily that we should make it easier for the 98.6% of people to do; just that everyone should be aware that it's possible.