As a frequent paddler on the Upper St. Croix I typically see one on most trips. I’m generally not a fan for obvious reasons, but I get that the river doesn’t belong to just one type of visitor.
The other weekend I happened to be putting in at a landing at the same time a jet boater was taking out and he was a super nice guy.
He explained how he has almost zero steering control under 5-6 mph, so when he comes across a paddler he will often speed up to get out of their way. Most paddlers take this as an act of aggression and he gets a lot of middle fingers while he says he is just trying to safely get out of the way, and that these boats actually produce less wake at higher speeds.
I also asked him how far up the river he could get and his answer was “all the way,” which as somebody who often tries to move upstream with a paddle and a small trolling motor sounded pretty awesome.