My use case: I want to see only caches from certain owners in the Wilson score statistics.
Use Case 1: only show caches of owner1
Use Case 2: only show caches of owner2
Use Case 3: show BOTH caches of owner1 AND owner2.
UC1 is easy to accomplish: just create a custom filter with owner1.
UC2 is just as easy to accomplish: just create a custom filter with owner2.
For UC3 I created a custom filter for both owner1 and owner2.
I hope I can make that more clear with this picture:
As you can see in this picture it shows the Wilson score statistics for both myself and a second owner.
But what if I want to compare owner2 and owner3, or even some owner4?
For each new combination of owners I would have to create a new custom filter. That is not very flexible and creates a long list of custom filters.
A far better way would be to create a feature which allows for custom filters to be combined.