"Assigned By" in Task Property

I still need this property added to Tasks. I don’t understand why this has not been added yet. I can see “Created By” in the Task board view but it does not show me who last assigned it to me. It could have passed thru 3 or 4 people before being assigned to me and I have to follow the breadcrumb trail to find out who assigned it to me.

I tried to figure out how to add a new property to Tasks like I can for other records, but changing properties on Tasks is not an option.

This should be property in a Task that I can see on the Record itself, like this: