That’s what the post you linked to says, but I don’t see how from the chart they link to or any other statistics they can possibly tell what percentage of accounts are “spam accounts.” By definition these accounts are being allowed through and not detected, so there’s no way for anyone to know how many there are.

I honestly wonder if they just looked up “what percentage of accounts on a typical website are bots” on google and multiplied that by the number of accounts.

Ah, I can finally log in! The green OK button was just spinning before when clicked, instead of actually doing anything, on both the account creation screen and the login screen, and even the “forgot password” button did nothing when I clicked on it. But now I can just log in with the account I tried to make yesterday, even though the OK button never went through.