Proposal: remove the restriction on normal Bugzilla users being able to change the Severity field

[David Edmundson]

>The reason for this change was to stop users with excessive ego from marking their own tickets and tickets they care deeply about as having the "critical" Severity level.

So what will we do to avoid getting this situation back?
I don't care if a user changes it once, but users who constantly set
their minor UI concern to critical gets tiring quickly. Angrily
closing doesn't work because you can get threads with multiple people
and then that isn't fair.

David