Objectively speaking, nothing. I listed my personal opinion. There is nothing wrong with tribal tats or tramp stamps or belly button rings or nose rings or whatever. Well no. I try to offer information about what 'society' deems good as a baseline. It's a not particularly interesting baseline, but it's a safe one. If you understand the baseline, then you can branch from there making informed decisions. I'm actually surprised it took this long for some defensiveness to rear up, so I guess I'll address it now =) TIME TO GO META The dirty secret about style is this: the way you present yourself is a short hand for other people to make judgments about you. So when you make a conscious choice about your appearance -- and I'm talking everything from piercings to tats to hair dye to clothes to shoes to makeup to handbags to whatever -- you are telling the world how you expect to be perceived. If you don't make a conscious choice, then the message is basically Fuck you world, I don't care what you think about my appearance. Which is also fine! There is nothing objectively wrong with being an ultragoth, a hipster, a metal dude, a gamer geek, a marketing guy, a house dad, or a granola hippy. You choose a uniform to identify yourself to others sympathetic and/or antagonistic to your tribe. This is normal and expected, and any negative judgments are part and parcel to the uniform. Those negative judgments will be a combination of personal experiences on the part of the observer, societal stereotypes, media portrayal, and peer groups. Those judgments are not absolute, they're purely subjective. Clearly my experiences with people who wear thumb rings has been non-positive.