[Pathogen-David]

If an app or website exclusively uses third-party logins I generally won’t even use it. In general I don’t appreciate anything that tries to get cute about account creation.

(However I agree with the other comment about HN not being representative of typical users.)

[leros]

I feel that way about sites that are only email/password. I don't trust them to have good security so I'd much rather use a third party provider. Good to have choice though.

[stephenr]

I don't really understand this view.

If you're using a unique password per site (ie something generated by your password manager) I don't see how you face any higher risk with the site operator storing a password vs string some arbitrary token from a third party authenticator.