Tracking bugs: - can't be used in a query, so I can't e.g. save a query for all deps of a tracking bug owned by me - I can't query for all bugs not yet assigned to some milestone, i.e. it's hard to keep track of which bugs I've looked at so far. (could also be addressed via keywords, using a "triaged" keyword)
The blocking issue here is that we would need the milestone field to be private, as the milestone-like tracking bugs are.
mcp makes this largely obsolete.
Red Hat's current Bugzilla version is 2.18. I am moving all older open bugs to this version. Any bugs against the older versions will need to be verified that they are still bugs. This will help me also to sort them better.