Man, since you asked, I'll give my thoughts on what I see, but as you said "don't kill the messenger". Now before I give you an honest answer, I do realize we have our 10% turd factor that makes us look bad elsewhere. I am speaking of a greater than 70% portion behaving this way, as observed living here.
I live on the border of MT and Canada. We get "invaded" in the spring and summer with vacationers, tourists and such. Most are Canadian. Here is where the welcome has worn out:
-Aggressive driving/tailgating/passing,
-disregarding laws, customs and courtesies,
-Tying up the boat launch like-for example-pulling your boat out just enough to not allow anyone else to -launch, when there are 5 rigs waiting, and proceeding to shammy your boat dry.
-Parking literally wherever you want, sideways blocking gas pumps, right in front of a store, handicap, boat -trailer parking only spots, you name it.
-Arrogance.
-Littering.
-Emptying the shelves-as in literally taking every product and filling carts, with your wife and kids all pushing one in a convoy through check out, so you can resell goods in Canada and my kids don't get bread or milk.
-Lack of respect,
-Acting like your the only person on the planet, displaying no regard for others,
-Forgetting your a visitor, and acting as such.
It has gotten so bad, most locals have abandoned the recreational places we love because it just ruins it.
There is also a divide with business owners who love the tourist $$, and the locals who just had enough of our home being the vegas-like, out of control destination where anything goes.