Would it be possible to to filter edits by whether the edit summary is matched by a pattern that the user inputs? One use case is for hiding some, but not all edits by a bot that does multiple tasks (such as w:en:User:AnomieBOT), some of which are mundane and you do not want to see. Another case is hiding semi-automated edits by a user using a tool such as AWB. In both cases, the edits to be filtered out would have the same or very similar edit summaries, so could be matched by user-defined regex, or perhaps even just an exact string match if regex is too complicated.
Hiding AWB edits is currently possible with a userscript I wrote, which then inspired a request for something similar for specific bot tasks. Such filters would be a natural fit with the other new filters for edit review.