Task types are great but they are currently a little bit ‘noisy’ 
Each time someone changes the status of a task type, all collaborators get notified, whether they like it or not.
It would be great if there was an option to disable notifications when a status option is changed, just like you can with single-select and mult-select fields:
I understand that when the completion status of a task type changes from an Active (Incomplete) or a Done (Complete) status, that notifications will be sent, just like when a task or milestone is set completed or incomplete - that would be acceptable and in line with that expected behaviour.