If I remember the same incident that you're talking about, it was a single file that had to be manually removed, and the fix was displayed right on the home page of http://archlinux.org for months..
The final solution could often need only minimal effort to carry out, but to debug and find out the problem, it takes much more time.
And the fix should come in through the right channel, like the package README or ChangeLog. Not sure if the home page of the whole distribution is the appropriate place for a fix like this.
The message should show up on screen when installing the package. If many packages are upgraded at once, a user could miss it. The output is also sent to /var/log/pacman.log
And the fix should come in through the right channel, like the package README or ChangeLog. Not sure if the home page of the whole distribution is the appropriate place for a fix like this.