GG is a hashtag. The only common association are the dislike of media behavior and disagreement with many elements of the... I don't even know what to call it because people hate SJW... "progressive agenda"? And it's tactics and behaviors.
If you ever used the hashtag to say something about those things and you're now "out". This means what exactly, that you've changed your mind on your original thoughts? It's just so meanigless. Because if you did not change your opinion then you're still part of GG to them.
That's why even though I used the hashtag barely a handful of times in the beginning and I don't think even ever said the words, "I'm in Gamergate," I won't be fighting someone who associates me with GG. Because of the common elements I mentioned.