My main reasons to hate them are belching out black smoke, often when idling to keep the aircon running whilst their customers are doing the tour. Oh, and the buses are always never more than half full, which is inefficient.
Regarding the occupants, if they are that objectionable, I'd be interested to hear comments on what it's like living in the country which they typically originate from ?
What I do know is the students China sends abroad seem to be quite well behaved, however that population sample has some quality filters.
Apologies to the moderators for taking this off topic. The Travel Pass is an important topic for travelers, once it is up and running. Therefore deserving a thread of it's own.
I would say some tourists are more concerned about these issues than the locals.