Yes, the anonymity (most) users enjoy on Reddit is interpreted by some as freedom to be assholes or trolls. Even then, especially in the more heavily moderated

Yes, the anonymity (most) users enjoy on Reddit is interpreted by some as freedom to be assholes or trolls. Even then, especially in the more heavily moderated or off-the-beaten-path subreddits, you get some very high quality conversations. It's not uncommon to see threads of multi-paragraph comments going back and forth many comments deep. I think Facebook's lack of anonymity already goes a long way toward keeping things civil there, and what little shitposting does happen there would probably get downvoted and possibly hidden by default when below a certain threshold if FB had that capability.