Great question! There are a few…
First, there are times where you need to filter using other data types, or you’re using an advanced filter (which is incompatible with Bubble’s ignore empty constraints checkbox)
There are also times, similar to my setup where you might have a different interface (like my checkboxes) for deciding when a filter should be applied or not.
Since not everything can be handled through ‘ignore empty constraints’ and using conditionals to change a data source can get messy quickly, this approach allows you to handle all your filters in a logical and organized way with all filters being listed in the same place.