[carussell]

GitLab should make it so that anyone who reaches a 4xx or 5xx error page should be able to trivially (as in one click from the error page) file a bug about it on the GitLab tracker. Make sure to pre-populate the template with URL, status code, and referer.

[viraptor]

You're assuming they're not doing that automatically in the background. I'd rather assume that they're already getting at least all 5xx reports. (it would be a big failure otherwise)