I LOVE this idea!!
I had a blog where I regularly reviewed and very nicely pilloried the rinks in my area - the rink managers generally LOVED it - even when I pointed out the obvious things like potholes (well, they seemed like potholes), bad lighting, guys with hockey sticks on public sessions (!) and stuff like that - I think it is all with how you approach it -
This being from a figure-skaters perspective!! What the recreational public or hockey skater likes and wants is different from the figure skating crowd that is for sure!