#*#*#_god: it is okay to think less of a person for their having a bad tattoo. They decided they wanted something permanently on their body and either: a) put no thought into this choice or b) actually put a lot of thought into the choice and still made a bad decision.
True story: back in the day, I had a huge crush on a guy at university, for over a year, and with such intensity that I was unable to speak to me. Finally we found ourselves at a summer festival in a beer tent, at the same table, when all our friends took off and we were left alone, and he was being oh-so-flirty. Then I looked down, saw that he was wearing shorts and then saw that he had band tattoos aground both ankle-to-calf areas. These tattoos were waves, with dolphins frolicking among rainbows. DOLFINS! RAINBOWS! WAVES! FROLICING! It was the instant end to my crush on this guy. I went from being unable to talk to him due to intense feelings to being unable to talk to him because I was so shocked and embarrassed by his horrible tattoos.
In regard to piercing, as I was sitting waiting for my buddy to come out of the room where he was getting pierced yet again, I was next to this girl with the web of skin between her thumb and index finger pierced and just horribly infected. She was bragging to me about the infection as if being infected was cool, and also said with pride that the piercer had told her it would get infected. She had a confusing attitude about the whole thing, and was infact there to get the other hand pierced in the same way.