Why do you say that? I have several friends who found it a great thing, though as people they are definitely outliers, and I haven't asked them again in a couple of years.
There was an article on HN some months back where hey followed up with one of the main body mod professional to do this work. He reported that most of his business now is people requesting them taken out, and that new installs have precipitously declined. It then went on to interview many people that had such a modification and what they felt about it.