While editing the filters, I always have a fear of breaking current functionality by mistake. Many of the filters use regex and/or other complex logics. Having some easy way of testing filters would improve the situation a lot.
Provide a way to save some edits or their enviroment variables into unittests. They should be save into two groups: edits that should trigger the abuse filter and edits that should not. Edited filters should pass those tests before being saved successfully.