Are there cliques on Fluther?

This thread mentioned cliques in general as well as “language cliques” and it made me wonder if this is really an issue here.

I know from long-term involvement in other websites that it can happen, and I do notice that some people here seem to be chummy, but this is the first I’ve heard of cliques here. I am often blind to this sort of thing unless it is pointed out, so I guess my question is whether I have been blind or if this has been some sort of issue in the past.