In studying US history I think a case could be made that just about everyone on the planet has a right, to varying degrees, to "stick their nose into" the US's business. Either to condemn, to praise, or merely comment, but just about everyone else has had the US nose stuck into their affairs. I don't like the idea either, but it is fair.
And on an internet forum, who cares anyway? If Gabby was all praise would we hear this ad hominem? I doubt it.
Edit: to be fair, on looking at other threads around here, I will say that Gabby is a willing member of the tit for tat dance, and also uses insults.