My first keyboard with reds was the Kinesis and when comparing those reds to browns on a normal keyboard, I was entirely certain that I preferred browns. I just got some reds on a normal keyboard now and they feel quite different than the ones on the Kinesis, not because of wear or the like, but just because of the different shape of the keyboard, which affects how you push down on the keys.
Now I'm not sure whether I prefer reds or browns! While I wouldn't call it a cloud of boobs, I can understand why some people like reds so much now whereas before when I had only tried them on my Kinesis I wasn't impressed. Just wanted to mention this because I've never heard anyone else mention that Kinesis reds feel different than regular reds.