But it’s not a mess, there is a clear chain of responsibility: * consortium -> font developers -> app developers. If anything is broken, bitch to the first level (typically app devs) and wait for your grievance to percolate upwards as necessary; if it doesn’t happen, you know who to blame.
* most modern operating systems have hopefully sorted out their issues a long time ago.
If you have to complain, it's broken. As a consumer I don't care what the issue is and who the responsible party is.
Unicode is a clusterfuck exactly because the chain is too long and the implementation errors are too easy to make and the world is rife with incomplete implementations.
It has nothing to do with the update speed and everything to do with the standard itself.
Even if you were freezing Unicode now, you wouldn't encounter complete, correct implementations in the wild more than 50% of the time in the next 5 years.
* most modern operating systems have hopefully sorted out their issues a long time ago.