The thing about Dota2 is that it requires you to use your brain. Juggernaut's spin isn't going to kill an enemy alone unless he's really dumb, and simply having vision on Bounty Hunter isn't enough to kill him. This is simple stuff, just think about it.
This is really unfair to say, because it applies to a lot of things and it's just a random insult towards me. Like, how does Dota2 take any more usage of my brain than League of Legends or Call of Duty? It's super dum to think your game is superior than my game cos it takes so much smarts to play and that I'm playing poorly because I'm just SO DUMB.
What are you doing harassing enemies and farming creeps with your skills? Especially something as valuable as Blade Fury. This isn't League of Legends, you're just wasting mana by doing that. Relatively few heroes can spam abilities and get away with it, and most heroes need some form of regen to keep using their spells. And if you're someone like Juggernaut who has trouble itemizing for mana regen, it's best to save your spells for when you really need it.
Yes, I realized that in the first few minutes, but there were a few times where I was about to go back and needed just a bit more gold, so I'd bladefury some minions/a jungle camp trying to clear them as fast as possible. It was super slow. And Magic Stick basically provided me most of the mana regen I needed in lane, so I could afford to whiff a spin or two entirely. And I never said I was spamming it "oh, wellp, q's up. Better use it!" - no. I used it when I thought it needed to be used.
Learn to last hit with your auto attacks, and harass your enemies with auto attacks. Try to only use your spells if you see the opportunity to get a kill or a team-mate is going to help you. Otherwise you're going to use your Blade Fury to harass the PA then suddenly Queen of Pain ganks from mid and you have no mana or cooldown and she ults you and you die. Then you go on tigsource and whine about how useless the heroes skills are, when it's clear you really don't have a clue about what you're doing.
Until I got Battlefury (or whatever the cleaving axe item is called), it was difficult to last hit with auto-attacks (especially with Shadow Demon taking all of them). 50 damage or whatever Juggernaut starts with is a joke.
edit: forgot about the healing ward, which you're wrong on that as well. it heals based on a percentage of your max hp, so how does it get worse beyond level 3? as long as the enemy doesn't kill it and the ward is skilled to level 3 and you have ~700hp, you will get your entire hp pool back when you use it. AND it's an AOE so it extends to your entire team. extremely useful for doing roshan, or healing after a teamfight for a push, or farming, or just about any situation really.
I don't know what I did wrong. Maybe I am just a big dum but every time I used it it was a big waste of mana. At half hp, use it under turret and stand still completely unmolested for full duration. Don't get back to full. use it after a skirmish on the 5 of us at 50-75% life. Nobody gets to full (although I do think Gondar killed it about 3/4s of the way through the duration that time so maybe

) The only time I found it useful was healing up after a few invisible Gondar attacks in the early levels, when it only had to heal up 3-4 of his attacks and maybe 1-2 from Phantom Assassin (I know, waste of cooldowns and mana and whatever)
Sorry for venting my frustration. I didn't realize somebody would take it as a personal attack. Guess I should use my brain net time

I guess what the actual issue was, was that nobody on the team had any stuns. It was Juggernaut, Shadow Demon, Viper, Dark Seer, and Templar Assassin. As far as I can tell, that team only has slows (Shadow Demon has his Q, but you can't damage during that(I think???) and Gondar always just stealthed as soon as it wore off and got away). I guess I should have bought uh... Abyssal Blade?? right? instead of Battlefury?
How did I get the one team with 0 stuns against an enemy that required stuns to beat?
edit: Also what the heck is up with this backdoor protection or whatever? Our team was losing hard, and I had an opportunity where I was at the 35% enemy inner top tower unimpeded for like 5 minutes, and I think the tower actually gained hp from my attacks. Why. What kind of silly babby game doesn't let you backdoor? If the enemy is going to ignore you at their low health tower for that amount of time they deserve to lose that stupid tower.