See, the thing I hate about dA feet is that it's always some sort of creepy, bondage-type situation. Someone's always tied down, and the laughter is more a sign of suffering than of intimacy. There's always some weird BDSM gear or technique involved. It's always played rough and it always comes off as bizarre and unappealing.
For me, the fetish is about intimate, loving ministration. There's no "tickle torture." The one on the receiving end is cooing and smiling. The one dishing it out is being gentle, lovingly caressing and kissing as they go. If tickling is involved, it's gentle, made to incite giggling and blushing.
It's a shame there's almost nothing like that out there