If you're fighting a spammer and lose, then you're skills are equal or worse than his. If you can't beat him that means that your footwork is significantly worse than his or you can't block, and if you can't block, then you by definition are a spammer. sorry if this sounded a little offensive. Tired and last exams are tomorrow and I'm sitting here studying.
Also, adding a stamina bar that decreases a set amount every swing regardless of spec and weapon would make agility builds largely unplayable. Because builds built on speed do less damage, i.e. you have to hit the enemy more, i.e. you do less damage and suffer more stamina consequences than other specs. Balancing this would require that agi builds get more stamina or take less stamina per swing while strength build are the opposite. This way both builds can deal equally much damage before the stamina runs out. So essentially this only nerfes anyone that fights against multiple opponents.
I'm just pointing out that this suggestion is here to nerf a specific build. Mainly agi it seems. Because OP seems to complain about being outspammed by long reach weapons with agi builds, other guy wants to nerf one handers that are too fast. OP is probably getting spammed because of polearm stun or weapon stun.
I only started to lose against spammers when the hiltslashing bullshit began. And I don't think Ninjas talking about footwork should be taken seriously. High agi chars already have the advantage in duels, they can circle low agi chars by moving to the side and slashing the other direction (forcing the opponent to turn to the other side a bit first, to block the hit), then hit their unprotected side. This is a valid move, as it takes skill to do so. What doesn't take skill is to swing left and right continuously like a moron. Unfortunately, this is also the best move against low agi chars, because the slashes will connect earlier than the victim's backswings, because of HILTDERP.
Even if we take hiltslash out, spam is a problem, because a dude who can't block at all can still rise to top ten in scoreboard by spamming a long 2h/pole.
What's making hiltslash worse is the armor "rebalance" by Paul that reduced glancing. Now it's possible to start a swing facing 150° away from your full plated opponent and still hurt him. Then follow it up with two hiltslashes, and the knight is dead.
Anyway, to get back on topic, agi chars already have better footwork and swing speed, with stamina patch (str/weapon weight), they would be able to swing as many times as str chars before running out of stamina. The only difference would be that everyone would have to block a few hits after having attacked for a while, to get the stamina back. People fighting multiple opponents have to block inbetween, anyway, so this situation wouldn't even change at all.
And duels would actually be MORE interesting, because the stamina running out would form some kind of alternating advantage.
Also, thanks for telling me to get better. It's like the most original answer I've ever heard. I might not be as good as Khorin, but I can certainly block regular spammers. This doesn't mean that spam is fine, though. Imagine arrows did 10x as much damage as now. The "solution" to this would be to use a shield. Just because there exists some kind of "solution" doesn't mean it's fine.