I tink it's a case of one man's trash is another man's treasure. I've seen some absolute horrors, but the people who wear them so proudly treasure them so hard that it doesn't even matter what anyone else thinks.
It's a case of opinion. I find tattoos without personality and those which are not uniquely drawn to be the most unattractive and clichéd. But whatever. I don't give two flying monkeys about what someone else is wearing on their bodies as long as they like it!