Nobody is saying you should be grateful for problems. What I'm saying is that maybe, just maybe, some of the actual users of Ubuntu, of which there seem to be a few, use it because they perceive it (rigthly or not!) to be a *good* fit for their needs ?
There's a large difference between harm and too-little-help. The real critique of it has been mostly the second variety; not ENOUGH is done to ensure bug-reports are efficiently communicated upstream, and bugfixes make their way upstream etc. I can agree with this. But that doesn't mean the hyperbole. I don't see anyone pulling anyones hair, frankly.
I didn't say being popular made anything ok. I said being popular may sometimes be a sign of actually getting some of the things that matter to USERS right.
I do agree it should be possible to do right onto users and at the same time ALSO do right unto upstream.
The trollish aspect is the typical open or hidden claim that anyone who uses Ubuntu is somehow clueless or harmful or doesn't know his own best. That's frankly insulting, and certainly nonconstructive.
I've run Slackware, Debian and Fedora for years. Frankly I don't think which distro I ran made much difference at all to how useful (or not!) I am to the overall Linux ecosystem. The few things I *did* trough Launchpad (some minor translation-work and reporting a single bug) are both present upstream today (in Gnu nano and nautilus-actions), so though things aren't perfect obviously some stuff is working some of the time.
In short, "ubuntu should do X" is constructive. "ubuntu-users are idiots, ubuntu is similar to the bully you knew in highschool" isn't.