Definitely not a fan - I've seen too many older guys with tattoos that look like Dali's dripping clock...
Right, they look like crap as the skin begins to age and muscle tone atrophies. At a certain point, tats begin to make you look older than you really are.
I'm a huge fan of James Ryder, but recently he plastered most of his left arm with tattoos and now I can barely stand to look at that arm. I don't mind a few tattoos, and many look fantastic on the young. But covering whole areas with tats is too much for me, even on the young. I don't really care that much what porn stars' old age is going to be like because I sure as hell won't be looking at photos or videos of them anymore then. The visual disgust will be their (or their partner's) problem, not mine.
Porn stars always had tats, even before they became faddish with the mainstream population. Perhaps this was because pornmakers did a lot of hustling of sailors at major ports like San Diego. These days, I think it's refreshing to see a porn star with no tats whatsoever. In my view, a total lack of tats shows more foresight and greater self-respect.