Linking negative karma points to a reported bug

[Bruno Wolff III]

On Wed, Jun 27, 2012 at 15:54:18 +0000,
   "Jóhann B. Guðmundsson" <johannbg at gmail.com> wrote:
>
>I myself give +1 to implement this since give negative feedback without
>linking to an already existing bug report helps no one.
>
>There was also mentioned on the meeting that reporters seem to be giving
>negative karma for bugs that never where mentioned getting fixed in the
>updates.

It may make sense to only allow negative karma if there is a link to an 
open bug that is not one of the bugs listed as being fixed in this update.
(If one of the listed bugs isn't really fixed, this is normally a +0 or +1
karma situation along with a note explaining the issue.)

In theory it's possible for a linked bug fix to be a bug introduced in a 
previous test build and be a regression against stable. But that's pretty 
rare.