Unfortunately I had planned but failed to exclude some of the iD ones:
 163476128,  163476238,  163476416,  163476742,  163479939,  163502236,  163502710,  163625364,  163625682,  163680698, 
 163709426,  163709463,  163748688,  163778513,  163778767,  163778850,  163779017,  163445439,  163445483, 
 163445569,  163461568,  163502449,  163625272,  163625740,  163709208,  163753811,  163753871,  163754006, 
 163778423,  163779222.
Some of those (see e.g. https://www.openstreetmap.org/way/1365994052 ) were actually still not great.
There were basically 4 different sorts of editing ("add pools manually", "add AI detected pools", "tidy up AI detected pools", "add other stuff") mixed across 2 different accounts.
One of the reasons why https://wiki.openstreetmap.org/wiki/Import/Guidelines#Using_a_Dedicated_User_Account_for_Imports says what it says is to prevent problems like this from happening.