Hello,
I think it would be really good to have a user setting (and default user setting) that allows to enable/disable the default reminder that is assigned when a new task is created.
I know I would rather specify myself those tasks which I need to set a reminder. I don't want a default reminder for all tasks.
The setting could be very similar to the "Task notification is checked by default" user setting through a Yes/No selection.
It could also be more complex, where the user is able to select the type of reminder he wants (just like when you create a reminder).