@mprogers ...
I understand what you are saying. While @ProfessorBeyrer's reply to @smszymoniak does indicate that bulk deleting questions is not possible, Greg did offer a work-around solution that one could try in his/her course. Thus, I would argue that Greg's response could remain a "Solution" at this time. If someone else chimes in with another solution different than Greg's, it could certainly be marked as a solution as well. In the past Canvas Community interface, we had the option of marking responses as "Correct" (and you could only mark one reply in a given thread as "Correct"). In the current Community interface, multiple replies can be marked as a "Solution"...in the event there are multiple ways to accomplish the same thing.
I hope this helps to clarify things for you a bit.