Running Arch for 4 years now. I've only had it break once. And that was user fault on my behalf as the update specifically said a file needed manual intervention and I neglected to read it, lesson learned, smooth sailing with no problems since. And no, not even ones that needed to be fixed, just flat out no issues.
And of course if you read the pacman / package error section you're going to find errors
There's actually a number of threads dedicated to users like me who use it daily 24/7 for years on end with 0 issues. Usually in the /dev/null section of the forum ( which I believe you have to be logged in to see?, not sure on that ) and a few others..
Anyone with proper knowledge of administering their own system should have very, very little faults, errors, or downtime with Arch. When you get people who are new to Linux or Arch specifically who still don't know much about Linux, of course they're going to have problems. It's apart of the learning process, and if they stick with it they will learn. And you can't blame the new / bad users for their mistakes and marking threads as solved when they aren't or whatever the cause may be.
And honestly, I've had just as many ( or few, depending on how you look at it ) issues with my Debian, Cent and Fedora machines.
And of course you'll get labeled as a troll when you come into a thread and do nothing but talk smack and call things names like " junk " , " broken " , " banned for starting a flame war " , etc. Had you come with a better tone and possibly some better wording / phrases, that would be a different story.
There's also a few users here that use it constantly with little to no problems ( unless self inflicted :we dont have a devil smiley that's evil enough to go here: ).