> I think the OP was saying that it is not a good thing to encourage people inputting their personal passwords to untrusted websites.
I dunno, the comment clearly says you shouldn't be putting wifi network passwords into websites, not passwords in general.
> They weren't commenting on the need to put passwords on wifi networks.
The thesis of the reply was "it makes sense to have a WiFi password even if it isn't secret". That's directly about whether it's okay to put a wifi password into a website.