My biggest pet peeve is probably the whole 'leash' aspect of RPing, or just lacking creativity as a whole. I would say in the most majority of my players, I'm required to do back flips for my partners to perform. Being a director on a big screen play that people can pat you on the back for is one whole awesome dig; but at a certain point, it can get a bit tiresome and annoying when you can predict what your RP partner is going to do, how they're going to do it. But this isn't a big screen play, high class project, it's a hobby that I'm sharing with another person. Don't you want to entertain me as much as I'm trying to entertain you? I'll create countless characters, fabricate the environment, give lore to a place that you're only going to be using for like an hour or two; don't you think I might deserve a little more than a dead fish technique when you're giving my character a blowjob?
If I want to be railed like a sock puppet, please, for the love of god, don't go straight to missionary and then shortly after doggy style then after blowing your load respond with: "Fuck yeah." Use the kitchen counter, bend my character out of shape, don't just push my character to their knees: do something bad ass like sitting on MC's head while shoving your dick down their throat. If I'm fucking your throat pipe, don't flop like a dead fish with the typical response that I don't even need to explain, because the person reading this knows what to expect.
Instead of responding to dialog, how about you start some for me to interact with for once? Anything, dude, blurt out that you like Donuts to the coffee shop worker that you're visiting from, I don't care, just something that produces some of that good shit. You wouldn't believe how making random comments like that in the real world can make friends, or even fuck buddies. People like interesting, be interesting.
I don't want to have to tug around this heavy ass leash and slog around to get you motivated enough to give me something sweet to read. That shit is definitely my biggest pet peeve, but it happens so often. I'm glad I have an RP group that I can work with, but sometimes I want 1x1 times with some new folk.
It just takes a lot of time and effort to sift through the 5 -> 10 bites I get from a bump.