To me, they don't in the least. Tickling is about giggling and playing and having fun. Not about how much sexy flesh can you grope or if you're gonna get laid afterward.
If you come to a gathering with the intention of seeking out only highly attractive people to play with, for one you're gonna be disappointed because we're all (mostly...there are a few exceptions) just your guys and girls next door, and secondly, you're likely going to offend the other attendees so badly you won't get any tickling action anyway. It's about the FUN, and you can't have that much fun while being superficial and egotistical.
For me, a desirable tickle partner has a great bubbly personality and loves to be silly. THAT'S a quality trait!
Mimi 😀