Another reason people don't like beavers is because they like to make ponds all over the place.
Ponds = lots of people biting bugs (mosquitoes,black flies, etc.)
I know ponds in forested areas that are fine to be around in the daytime on sunny days.
On other hand, at night or on a cloudy days you better run for your life or the tiny
flying vampires will drain you dry.
To be honest I have never had problems growing around beavers but I know others have.
While on a kayak trip once I put up my tent and tied off my kayak and was just bedding down when a beaver decided he didn't like me in his territory and kept slapping his tail all night. Honestly he/she was so pissed I thought he may drag my tent into the river.