Tapping does not bother me at all ... in training. When I compete, and I lose, I am going to be pissed ... with myself. Then I am going to train harder, and get better.
I think it can be disparaging to people when they are training because they put to much emphasis on it. Tapping in training is not losing, it's a learning experience. You made a mistake, you paid for it, and now you are going to learn from that mistake, and try not to let it happen again. When I tap, I give props where they are do, and then try and figure out how and why I got tapped, and prevent it.
With that said, when I tap someone else, I am secretly smilling on the inside, while acting like it meant nothing.
I think someone said it best, when you see a higher belt tap a lower belt, it's cool. It's like you have something to look forward to, seeing the difference in their skill level. It's a little different though, when you are on the same level as someone else, and you feel they are just much better then you. That can hurt your ego, and I totally understand that.
The funny thing is that I am a very competitive person. I've played sports competitively my whole life, and I HATE losing. I just don't think of training that way, but I know there are people that do.