I came back to this to fix this. Did a fair revamp of the code to simplify the whole thing. Also, if there are no anniversaries/birthdays on that day, it’s automatically hidden. (I’ve also localised the TC and settings’ descriptions)
2 new settings are introduced: anniversaries_text and birthdays_text. You can use the placeholder %{count} for the number of users celebrating that event.
Please report back if you have any errors or problems faced!
The sheer number of times I wrote ‘anniversaries’ and ‘birthdays’ 