Try to deal with this a bit at a time.
Well, as long as we're painting with broad brushes, I'll say that the people who seem most critical of what we're doing are the ones who think the entire system must be destroyed in order to make it any fun at all.
Obviously, both "camps" (are they camps?) are a little strung out on hyperbole and often don't attempt very hard to see the other point of view.
Fair enough, though I consider myself a more educated 3.5E player than you might give me credit for. I was a 3.5E player exclusively during the lifetime of that edition(I missed most of 3.0E), was the DM 80% of the time, and I was the guy in our group who, either as player or DM, knew how the system ticked and how to make it dance.
All of the things you listed in your list of irreparably broken items are things that Jason has addressed in one form or another in the Pathfinder rules. Granted some of these changes didn't happen until the playtest and thus are not public yet, but they have been addressed.
I don't think I ever used the words irreparably broken. My meaning was to introduce a number of things that bog down the game. I would use the phrase more hassle then they're worth in place of irreparably broken.
Have they been addressed to your satisfaction? Reading your posts I'd have to say "probably not," but then I strongly suspect you are not in the target audience of Pathfinder anyway, since you obviously hated 3.5. Lots of us didn't, but that doesn't mean that we're immune to its flaws.
I'm not in the target audience of Pathfinder, but I wouldn't say I hate 3.5E. Frustrated maybe, and preferring alternatives(4E and 2E) definitely. I certainly didn't hate it when I was playing it three times a week. As for being immune to flaws, its more of a case of forgiving flaws. People who are 3.5E junkies regularly forgive its flaws. I'm a 4E junkie, and I forgive the fact that the game is nowhere near as fast as I want it to be. Forgiving flaws doesn't lessen them or make them not exist. 3.5Es and 4Es flaws are still flaws.
Contrary to your sweeping generalization, I think the most commonly heard criticism from people who _are_ excited about Pathfinder is that they're worried about the unbalanced nature of high-level play. "Fixing" these issues while remaining true to our compatibility goals will of course be the real trick.
Will we push things too far from the 3.5 core to appeal to the 3.5 die-hards? Will our changes be enough to get people who have given up on 3.5 to give Pathfinder a look?
We won't know that until this upcoming August, at the earliest. All I can do as a publisher is put the very best people on the job and trust that they will do excellent work. I can prod them on one direction or the other, but I've got to trust them.
And I do. I'm enormously pleased with what Jason and the thousands of playtesters have been able to bring us, and I am now looking forward to high-level play in a way that I never did in the era of "straight" 3.0 or 3.5.
It is the real trick, isn't it. My issues would be this:
1. I don't hate 3.5E, and would be interested to look at a fix I could believe in.
2. I had enough bad experiences with the system as it is that I'm not impressed by minor tweaks.
3. I am a systems guy, somebody who lurked on the CharOp boards, and not only knew the tricks, I understood how and why they were tricks. Any new system or fix is viewed through these eyes, which are by definition a lot more critical.
4. Knowing the exploits of 3.5E, when I was playing/DMing it, the specter of the game breaking always hung over my gaming experience. I knew the game could be broken, I knew personally how to break it, and I gamed with people who were more than willing to break it. I witnessed the game being broken on many occasions. I broke it myself in some of those instances, as the competitive spirit in me demanded that if one of the other players was going to break the game, I was going to break it harder. I game with people who played to be spotlight hogs and to "beat" the DM. Personally, I play the game to kick ass, and other players using CharOp to break the game raises the bar for kicking ass.
5. Backwards compatibility--When I played 3.5E, we used a good deal of books. To me, 3.5e just isn't 3.5e without the pile of splats, and I can't imagine playing the game without the Warlock, PHBII, Tome of Battle, or Psionics. Combine this with my systems guru mentality, and the little differences bother me, as would having to tweak books I would plan on using.
6. If we were to start up a new game of OGL/3.5E without the Spell Compendium, our group would experience World War III. Fixing spells kind of loses its luster when you have to limit yourself to the PHB/Pathfinder book, or tweak/limit the Spell Compendium. Its been a while since I've looked at the Beta, but while you say you've toned down save or dies, what about save or suck? Save or Suck spells were usually worse offenders then the killing ones.