No cav player is skilled enough to reliably kill aware inf on horseback, and thus nobody with a bayonet has any grounds to whine.
I beg to differ. There are a few, and more will arise. It's actually quite easy with heavy cavalry.
I play heavy cavalry almost all the time, but it doesn't really matter what kind of cavalry you play, if the infantryman is any good at the game and knows you're coming - and its incredibly easy to know you're coming - then he will almost certainly stab your horse (And there's sweet FA you can do about this as cavalry save riding away and leaving em to it, you can block for yourself, not your horse) and as you lolslide along the floor he will stab you and kill you where you lie. Because falling off a 1/2 ton horse isn't half as bad as having one fall into you at 10+ mph, but that's mount and blade for you.
There is a certain point where the skill of the cavalryman becomes a non-factor, its all about whether the infantryman has enough sense to stab the horse at the right time rather than the rider, doesn't matter how you turn or what speed you're at, if the infantryman knows what hes doing then you're shit out of luck as cavalry and should get back to picking off all the new players while you can.