When creating "tasks" in "workflow" i get the option to
A) assign the task to a specific user or
B) assign the task to the record owner.

I suggest that you make it possible also to assign the workflow task to "created by".

In that way it will be possible to set up a workflow where the creator of a task gets notified when the task that he created has been completed. And many other scenarious of course...

Thx
Bo