No it isn't. It's a sports message board. And as a privately owned entity, we are not governed by the First Amendment.
@jcassio wasn't referring to you in particular. His post was a comment on the anonymity of social media...and how it brings out the worst in some people, which pretty much goes without saying (and probably should have - at least in this venue).
Bottom line, name of the thread is Iman Shumpert. Ptrobably bee best for all concerned if we just got back to that.