I know that this isn't what the OP asked for, but I feel compelled to offer my opinion.
I personally try to not be judgmental of things that don't affect me. Tatts just aren't my cup of tea, but if someone else likes them that is fine by me. I should offer the disclaimer that I am of the generation that has traditionally associated tattoos with prison time. Times have changed.
As far as being judgmental, I find that people sporting tatts are no less judgmental than their non-tatt adorned brethren. There's something about having art on your body that has an implied requirement for affirmation from others. Just as one can say "Nice art, bro" there is also the unspoken smirk at a misspelled word or poorly inked piece of art. For you tatt people: Do you ever silently appraise the art on others?