>Daily powers are fucking awful, they were cancer in the limited amount they were present in 3.5, and the ones still in 5e (action surge and second wind) are also cancer.
3.pf's spellcasting system was cancer, yes. It was also the only interesting thing about the game, so I'm not sure which edition you think you're defending here.
>But if a 4e maneuver exhausts you, you should get to use it more if you have a higher constitution. That just plain makes sense. But you can't, because the game is designed around being balanced instead of making sense.
Fuck off.
This kind of autistic cherry-picking BUT IT'S LOGICAL shit really rustles my jimmies, because it's not JUST autistic bitching about certain trivial things but not others. No, it also invariably leads to things making less sense on top of that, because it completely eschews organic flow in the world in favor of this particular neurotic thing you're obsessed with.
Taking your example, sure, we could let you, what, use exhaust-keyword encounter powers Con mod times per encounter rather than once? Except then they have to be rebalanced to account for the fact that any frontliner is likely to have 14-16 in Con, and so be able to use them 2-3 times an encounter, which... well, that makes them pretty close to at-wills, only they exhaust you, so... yeah, you get an unholy abomination of meaningful and not-meaningful, saddled with "this is an important decision, consider when and if to use it" mechanics while stuffed in a "you have plenty to spare" use slot.
And the payoff for this jank? Well for one thing, the fighter gets to exhaust himself doing something strenuous three times a fight rather than once. You'd think exhausting yourself would prevent activity so strenuous it exhausts you, but NOT IF YOU HAVE HIGH CON! That just makes sense. Also, we got to apply a janky, hyper-specific relation between exhaustion (self-inflicted only, obviously) and Con. Not anything else, just those two exactly.
WORTH.