That minority makes the different demands on UI, since they use the site in a different way from the passive users.

Case in point, if you're rarely ever contributing it doesn't really even matter if the entire website crashes when you paste into the rich text editor so you lose everything you've written. Which I guess is why this bug is still not properly fixed on all browsers after being broken as hell for 4 years, including for long times on Chrome(?!) [1]

[1] https://www.reddit.com/r/bugs/search/?q=paste&restrict_sr=1