How to Delete iCloud Calendar Spam Without Alerting Spammers

A number of iCloud users (myself included) have been receiving spam in the form of unsolicited Calendar event invitations over the last week. 

Suspect Black Friday offers for cheap goods have been appearing in personal iCloud calendars, with the default options to Accept, Decline (or Maybe) appearing at first to be the only way to get rid of them. 

Unfortunately choosing any of these options simply notifies the spammer that the account is live and ready for more unsolicited offers. Instead, users are advised to try the following alternative method for dealing with the spam events on their iOS devices.  

1. Open the Calendar app and tap the "Calendars" button at the bottom of the screen.
2. Tap the Edit button and on the next screen, select the "Add Calendars" option.
3. Give the calendar an easily recognizable throwaway name, like "Spam", and tap "Done" at the top of the screen until you're back on the Calendar screen.
4. Select the spam invitation and move it to the "Spam" calendar you just made.
5. Tap the "Calendars" button at the top of the screen, tap the "i" button next to the Spam calendar, and on the next screen, tap "Delete Calendar" at the very bottom of the screen menu. 

That should rid you of the unwanted spam event, leaving spammers none the wiser.