Thessara I believe that it would be great for Admins to be able to mass notify users via PM over various topics and subjects without the need to create a discussion about it.
Umutcan It could be a good feature for mass PM 2.0. However, the mass notification extension that I think you might be interested in is under development. I think you can support it there too. https://discuss.flarum.org/d/36945-notification-hub-development-updates
