Currently in the UI and API it can be difficult to tell what exactly a particular firewall rule is being used for. I know that it is currently possible to add "tags" to firewall rules, but that seems suboptimal from an ease-of-use standpoint.
Would it be feasible to add a "comment" or "description" field for firewall rules in advanced zones? It could be added as an extra DB column, and appear in the UI and listFirewallRules API call (unless it's left blank). In theory the description/comment could also be added to the IPtables rule on the VR. This could probably also be applied to security groups. Thoughts, comments?