I don't think Chase did anything dirty. But as long as the racing and payback is within the rules, it's always self policing. If you get moved out of the way in nearly the final corner for a top 10 spot, I think it's a bit ridiculous to say that retaliation for that isn't expected. Elliott didn't do anything wrong, and Suarez didn't do anything wrong either. Dumping him seemed a bit excessive, but really, it's just racing.
It doesn't have to be dirty to invite retaliation, imo. I think it's great for the sport.
And I've said it before, and I'll say it again, I think Elliott having little run ins is great for the sport. We don't always need a 'good ol'" boy.
I much prefer the tempermental frat bro Elliott to the "oh shucks, I gotta be better" Elliott.