I can understand the argument in either direction but I also prefer 1. I think it’s both more correct, and easier to “fix” if it wasn’t what the user wanted, because most calendar softwares make it quite easy to delete extra events with a single action (such as Google Calendar):
So the hassle of:
- I didn’t want to RSVP to all events, so I need to remove the extra ones
Is much lower than the hassle of:
- I did want to RSVP to all events, so I need to come back here each week and make sure to keep adding them to my calendar
