For me it's bad coordination when there are multiple lers. Real effective tickling in my experience involves head games and building tension, and when you get multiple ticklers just mindlessly going at it then you're bound to lose a degree of that.
The worst offenders of this unfortunately...
I'm pro-feathers myself! I like how you can just slowly trace them on a hot spot and make someone just cringe with tickles.
To each their own I guess :)
Personally I love the feather + foot combo! I know it's not for everyone but I think that's because feathers only seem to tickle the most sensitive of feet. That's probably why it seems so iconic, because someone laughing while getting their feet feathered is an image of someone who's SUPER...
Agreed on the D/s aspect. Personally I appreciate a sort of realness to m/m vids - normal looking guys in realistic scenarios. I know there are a lot of people who like chiseled muscle models and some like superhero scenes but what gets me going are boss/employee or professor/pupil style scenes.