I have rarely seen a pierced hand in the flesh, but I like the idea. Out of all the piercings, hand piercings are said to take the longest to heal due to risk of infection and contamination, but these people clearly thought it was worth the risk.
Pushing it to extremes, people have had ribbed implants put in for pleasuring the lady in their life--now that would be just too strange.
Implications - What kind of strange and bizarre locations will they think to get piercings in next? The toe perhaps? Maybe forehead skin? Hmm, on second thought, maybe piercing the hand away isn't such an extreme thing to do.