Mark as dummy data module

I was tired of manually deleting dummy data so i created a module that allows me to mark content as dummy data.
This allows me to delete all dummy data within one batch call.

You can choose wether or not you want to mark all new content as dummy data.
e.g. at the start of a project, all data will be dummy data.
Later on all content for a content type gets imported, so from now on all new content is default not marked as dummy data.

A checkbox on the node add/edit form allows to override this default behaviour.

You can choose to remove all dummy data. This will call a batch to remove all nodes marked as dummy.

There is a views filter available, you can use this for deleting dummy data on a per content type base. (using vbo)

Would it make a usefull contrib?