Both Mrs WS and I are tattooed more than once, and I can say it's never been an issue with any playmates to date.
If someone does say something along the lines of "no tattoos" in their profile they are simply stating their preference and you'll know they aren't for you. I'd say they are the minority though.
But, here is the clincher... we've had many people contact us stating they like women that are skinny, slim, etc. yet they can plainly see from both our profile and pics that Mrs is a full-figured woman. When I'll email them back saying I don't know if we'd be a good fit because of this it all of a sudden becomes a non-issue with them.
So maybe even the "no tattoo" folks take people on a case-by-case basis.
Mr. WS