It would be nice to create global and/or project level subscriptions for pulse users. For example, I would like to create a global subscription where all users are notified if their latest changes causes a build failure. Making this globally or on a project level ensures that every users will have the subscription.

A way of making this more powerful is if there was a more of object substitution. As another example, the rule could be specified like:

if ${builld.status} == "failure" then
  generateNotificationTo(${build.project.properties.mailingList});
end

In the case above, the rule will send an email to the mailing list for any project that has a failed build.