I have a similar problem. I treat my calendar as a transient thing and I frequently "clean up" (mass delete) all past events, which (as others complained) unfortunately triggers email notifications. But I actually like the automatic notifications for incoming events, so what I would really like would be to split the delete action/button into two variants: "Delete with notifying" and "Delete without notifying". Or maybe an option in settings to toggle the notifications on and off.

This is absolutely critical for me. My calendar has lots of invitations that are shared, but only one person needs to attend the actual event. If I end up not being the one who attends, I want it removed from my calendar for accuracy--but it is not something that the event organizer needs a record of. This is both a privacy and efficiency issue.

I really miss that feature... It's really weird that people get notified when I delete an event. If I wanted to tell them I won't attend, I'll tell them. Besides, this is absolutely annoying when you delete a past event (I do it for all my previous events).