Mainly oldfags were the ironic ones. Newfags (alt-right, pro-Trump, Kek, etc.) kinda chased us out.
A 4chan run by newfags would have been unthinkable in the days when Newgrounds was in its prime. I stuck around for long enough to see the beginnings of Kekistan but yeah, that's a damn shame, as there was a pretty strong left libertarian presence there. Nothing in this world is safe anymore
That's just /pol/ and a few other boards at most. 4chan has over two dozen boards in total, some of which are quite resourceful (such as wallpapers).
In fairness, I was mostly just a /b/tard