In many first person shooters, using RS for melee.
Why, why the fuck would you do that?! It feels terrible, no sense of feedback whatsoever. I know console controllers aren't trying to make every button press applicable to the action they perform, but still. When I want to cut someone up, or smash their face in with the butt of my rifle, why on Earth would you attach that action to the weediest button press possible? This does not make me feel like I just smashed a guy's face in! Not to mention, despite your thumb being in direct contact with the right analogue stick most of the time, pressing down on that stick to perform an action in the middle of a pitched battle just feels awkward somehow.
and before anyone points out the obvious, I know in the vast majority of games you can change the control layout, either fully customising it (something that is sadly rarer than it used to be for no adequately explained reason), or choosing from a collection of presets. That's what I always do, but that's not the point. When I want to get stuck in to the new game I've brought it does kill the mood to some extent to first have to go into settings to un-retard the controls. I've met nobody, I repeat, nobody who likes this standard configuration, so why is it the standard?