I don't see the damaging filter in https://en.wikipedia.org/wiki/Special:RecentChanges, really strange. I quickly checked in SAL and gerrit but I don't see a clear culprit, but this is definitely not my area of expertise. I added the ORES extension tag so other people will be able to chime in :)

I am totally ignorant about how the extension works, but I'll try to come up with some links. The first one is:

https://github.com/wikimedia/operations-mediawiki-config/blob/master/wmf-config/ext-ORES.php#L156

The mediawiki config states that the ores damaging filters for enwiki should be active.

https://www.mediawiki.org/wiki/Extension:ORES's interface section also suggests that the filters should be enabled for enwiki.

update: @isarantopoulos and @elukey are investigating

So from the config:

		'damaging' => [
			'likelygood' => [ 'min' => 0, 'max' => 'maximum recall @ precision >= 0.99' ],
			'maybebad' => [ 'min' => 'maximum recall @ precision >= 0.15', 'max' => 1 ],
			'likelybad' => [ 'min' => 'maximum recall @ precision >= 0.45', 'max' => 1 ],
			// verylikelybad uses default

From https://github.com/wikimedia/mediawiki-extensions-ORES/blob/ff6e4fbedf537b484ad96602aaeca28ebed28966/i18n/en.json#L13-L15 We can see the translations for enwiki:

	"ores-damaging-maybebad": "May have problems (flags most problem edits but includes many false positives)",
	"ores-damaging-likelybad": "Likely have problems (medium probability)",
	"ores-damaging-verylikelybad": "Very likely have problems (flags few false positives but finds a smaller % of problem edits)",

And this is from enwiki now:

It seems working, maybe it was a temporary issue/hiccup? @isarantopoulos does it make sense?

After investigating some past RecentChanges filter tasks (T144451, T149734, T149853), it appears that the damaging filter is actually the "Contribution Quality predictions" group filters. They include the filters: "Very likely good", "May have problems", "Likely have problems", and "Very likely have problems". These filters are still visible on https://en.wikipedia.org/wiki/Special:RecentChanges.

Did it get renamed or something? I swear it used to be called "Damaging predictions" group filter

Not 100% sure if I'm looking at the correct place but from what I see in the ORES extension this has been the name for the damaging filter (Contribution Quality predictions)