That comes back to the earlier point I made: developers often not having the power to change this. Others (and myself) already mentioned this is not a problem of JIRA itself, but rather JIRA being predominantly sold to management types that do not relinquish control and overconfigure the system.

I would love to see the insides of what we have configured, and toss the junk out. It ain't happening in the next 20 years, and I sure as heck don't plan to stay that long at a company putting little value in the experience of its employees.