All of my mushrooms (including the one that almost blinded me) have detatched themselves and moved.
I bought a few each different colors, blue, purple, green stripe, and red. Even though I tried to put them in a spot with low light and low flow, which is pretty much anywhere in my tank, and they've all moved... repeatedly. Unfortunately, they've now all moved into the rockpile abyss, and I haven't seem them since.
The other day, I noticed that one of my hairy mushrooms (that's attached to a small piece of rock), has also relocated itself and the rock it's attached to- to the back corner of the tank. I have no idea how it got to where it is, becuase it had to move over another rock to get there. And now that one looks like it's detatching itself from it's original rock that it travelled with, to the back of a rock next to it. My other hairy mushroom is fat and happy in the middle of the tank. Go figure.
I felt a little aggivated too, when I saw pictures of other tanks with these pretty mushrooms all over the place. So I just gave up on buying them. It was easier that way.