wow I can't imagine the negative affects of all that poison being sprayed, especially right in the spring when there are so many nests/babies ect. They are asking people around here too to cut their trees, I find it a tad humorous they want homeowners to cut them, when they are in the city, in ditches and public rights of way here, and I even seen a patch on conservation land a while back while driving.
I'm not cutting mine down, I like them and while I would not plant them again on purpose, they are here to stay now. They've been here for 10 years now. I don't mind the smell as they bloom so early in the year I am not out in the yard much anyway, and the blooms only last a couple of weeks-the smell is only strong for a few days after they open. The view from my kitchen window is beautiful. If they die off someday I will replace them with something else though.