Why would someone like to buy a twitter account with less than 50 followers?
And can you please run an account test on this website:
https://www.twitteraudit.com/And share the result here for that 600 follower account.
Some people are buying Aged twitter, facebook, Instagram, it doesn't matter how many followers/friends they have.. I once sold my 2012 twitter 0.02 BTC. It doesn't have any followers. At that time, the buyer needs "old account" for his business.
Anyway sorry I'm on mobile and can't give you screencap of the result, here is the link to twitter audit.
https://www.twitteraudit.com/Jinergizer87 76%