This may be something for the notification service to provide - it could tell launchpad on (near) identical notifications for the same (object) (actor) etc. That would then let launchpad implement policy (e.g. rate limiting the user, blocking them on one object etc).
This may be something for the notification service to provide - it could tell launchpad on (near) identical notifications for the same (object) (actor) etc. That would then let launchpad implement policy (e.g. rate limiting the user, blocking them on one object etc).