I wonder about the ones who seem to feel obliged to be rude about people who enjoy it.
Luckily, I enjoy riding fixed too much to care what anyone else thinks.
I would recommend anyone to at least try it. Some won't like it, which is fine, but I love it.
Hard to put my finger on exactly why, tbh - I don't go in for all that "at one with the road" metaphysical nonsense, but there is something very satisfying about the simplicity of it. And it really does improve your pedalling - I was regularly doing a 12 mile commute on fixed for a couple of years, with a decent hill in the middle of it, and I found doing the descent regularly did wonders for my souplesse. 200rpm? No problem! (Well, kind of...)
NB I ride with both front and rear brakes on my fixed, though I rarely use them, even on descents - leg braking is actually preferable for most situations. The more you ride fixed, the more you learn to use your legs to modulate your speed.