Focusing on his left leg, you strike at Korash with a menacing double-edged klangaxe. With an elegant stroke, you strike his left leg, knocking him to the ground.
8460h, 4620m, 6600e, 10p, elrk<>- 38.17
Korash stands up and stretches his arms out wide.
8460h, 4620m, 6600e, 10p, elrk<>- 38.85
You have recovered balance on all limbs.

lolwut? Did KD get a ninja nerf?

What's the context? Had you kd'd him in the last six seconds? Had any type of stun pulsed within an immunity before it? Is he an acrobat with dodging who just triggers stand to kd and gave the generic message without being proned?

No context at all. Ur'Guard novice, that was the first hit of any kind on him.

With a focused look, Sidd strikes at you with a klangaxe of darkened steel. Your left leg is elegantly struck and swept out from under you, knocking you to the ground.
5534h, 8267m, 6662e, 10p, 25145en, 28175w elrxkp<>-21:24:58:493

With a focused look, Sidd strikes at you with a klangaxe of darkened steel. Sidd strikes your left leg, mangling a major artery that explodes blood in all directions.
4912h, 8267m, 6662e, 10p, 25145en, 28175w elrxkp<>-21:25:00:830

You bleed 148 health.
4764h, 8267m, 6662e, 10p, 25145en, 28175w elrxkp<>-21:25:01:294
clot

You are too stunned to be able to do anything.
4764h, 8267m, 6662e, 10p, 25145en, 28175w elrxkp<>-21:25:01:459

You are no longer stunned and have a brief stun immunity.
4887h, 8207m, 6662e, 10p, 25145en, 28163w elrxkp<>-21:25:01:921

(I took out some spam in the middle there, but left the relevant parts I think)

Sidd is a Faeling with a (currently) 290-speed axe, but still, the time there is more than a 15% speed bonus + 10 speed.

Yeah that's nice and all but it doesn't explain why the stun I had lasted so briefly.

You're right, it does not explain that. It does show that it doesn't seem to have been nerfed, though. You could do some more tests. The stun time is somewhat variable. You also should use some timestamps, since it's hard to see if he got up just before the balance regain.

Timestamps are there, read it again.

Focusing on his left leg, you strike at Korash with a menacing double-edged klangaxe. With an elegant stroke, you strike his left leg, knocking him to the ground.
8460h, 4620m, 6600e, 10p, elrk<>- 38.17
Korash stands up and stretches his arms out wide.
8460h, 4620m, 6600e, 10p, elrk<>- 38.85
You have recovered balance on all limbs.
8460h, 4601m, 6600e, 10p, elrxk<>- 40.57 <-- added this one now too.

Hmm. So they are.

Any chance that you did this during one of the recent lag spurts? Either way, getting a few more numbers doesn't exactly hurt.

Erm, wait a second. He got up RIGHT AFTER? Immediately? That looks like the stun didn't even hit him for whatever reason.

Ohhh, was he already prone? That's my guess. Already prone, can't be knocked down again.

Edit: Aha, that looks like it was because he was prone. He kneeled right before I hit him (prone). I questioned that because he said it did stun him.

Case closed, Sherlock!

Check the edit.

My speculation is that he was already prone (had done SIT or something), because there's no way that stun lasts 0.5s or less.

So if one is clever, they can time a SIT right before an Axelord whacks them, so as to avoid the stun? Seems.... like a BUG.

I'd like to see you try it (and succeed).

"Hey, this person is sitting before I attack. Maybe I should just lop off their head while they can't parry and stance."

It's not a bug, both knockdowns fail on a prone target. That's what stops it from being completely and utterly retarded.