Problem identified

There is considerable inconsistency in when the release blocker tag is added to an issue. This devalues the use of the term and steers contributors away from certain issues in favour of those with the release blocker tag

Proposed solution

Establish a set of criteria to be used.

Open questions

What should the criteria be? I would suggest basing them on the existing https://docs.joomla.org/Bug_and_Issue_Tracker_Priority

So for example a css error in a specific browser could never be a release blocker
But a delete button not working could be a release blocker (depending on where)