It depends on how old your Quora accounts are.
It also helps if the accounts have a track record of posting answers that fit a certain identifiable or consistent niche pattern.
With that said, I've seen people making money off Quora by simply upvoting people's answers.
The way they do this is they would have some sort of sexy picture but no nudity and no significant amount of flesh but something that is teasing.
And then they would just have a call to action on their profile page and people either have to enter the domain into their browser or, as recently as three months ago, click on a link.
As you probably already know, Quora is cracking down on links on their platform so unless accounts are old enough, it's probably not a good idea to link from your profile.
But there are ways around it.
At the end of the day, the real money to be made on Quora is through the answers.
I'm not talking about answers that contain links either.