Being smaller they can and should user human moderation. Twitter and Facebook have problems because of the huge number of posts. Parler is still small enough that then _can_ moderate.
“Five million people were active on Parler on Monday, which Mr. Matze wrote was an 8-fold increase in user engagement from the previous week.”
https://m.washingtontimes.com/news/2020/nov/10/parler-says-i...
This doesn’t seem like a problem that could be solved with more human eyeballs.
This whole "Parler can be better than Facebook because they are smaller" argument is just as illogical as it sounds.
Also, you don't thin smaller groups, companies, whatevers are easier to control?