When you move a bug from one milestone to another, that has implications for all the linked bugs/tasks It would be helpful for Jira to present a tree of the linked bugs/tasks with their milestones so that you can a) assess whether you should really should be making that change and b) have an easy one-button method to adjust everything in the tree to match.

Can we also get a report that flags any incompatible milestone settings (i.e. task/bug A is set for completion April 1, but is marked as blocked by task/bug B which is set for completion May 1. Either A needs to move to May 1 or B needs to move to April 1.

It would be even better if we had a way to mark when work on a task has actually begun (see https://jira.palm.com/browse/ES-2398 ) and then a way to generate reports that flag which bugs/tasks are due in some period of time N (say, 2 weeks from today) and have blocking bugs/tasks on which work has not yet begun.