Some things never change. Years ago I was in a brewpub and the server told us that one of the beers was made with "those new, federally approved, high alcohol hops."
It's always the hops indeed!
I've done this once - crushed and cold steeped overnight in the fridge, strained and added to brew kettle pre-boil. I liked the result and will do it again.
I've aged saisons on rhubarb before too. Like xpops, I froze the rhubarb - no blanching. No vegetal flavors, just nice and tart especially in the finish.
Chickens love them. My wife would freeze a pound or so in the summer and give then give it to them on hot days. They seemed to like pecking away at the frozen clump of grains.
I'm pretty much on board with what others have already mentioned. All three Marquette breweries are worth a visit. Ore Dock's saison is quite good, but the rest of their lineup didn't do much for me.