Generally the community is quite friendly and has a good sense of humour (so many humorous shout moments) but you do get people who are much less polite than others, especially in the duty finder. Outside it the worst I see is people giving everyone abuse for missing an S rank or pulling it before they could get there in time.

In the DF though, it can get harshly toxic, I think everyone can attest to meeting really unpleasant players, mostly in EX primal and raids (hell in the Binding Coil, new players are talked down to in my experience)