There is a Chinese account that has normalized the KFC tag that its changeset boundary is so big recently, which included Taiwan in it. The changeset boundary is so big that makes QA tools like OSMCha not function as expected, probably Overpass API limitation. The reviewer has to manully review the changeset if there is anything wrong. As a Taiwanese mapper I check if he change something inside the Taiwan boundary, and foundout he does what he said. The mapper stated in his changeset comment said he did not touch KFC in the “Taiwan area”, which in my humble option is not quite necessary.
I will recommend that even though the cause is QA tools problems, that can not check edit in a country if it is problem changeset, might be a good idea to avoid such a big changeset boundary. Split the big changeset into a much smaller, much checkable changeset that lets QA tools like OSMCha to function normally. This could avoid potiental disruption. Heavy mappeers could focus on mapping, not changeset comment discussion.
Even though Taiwan is a small place, there are many hard-working mappers that contribute to OpenStreetMap, following the truth to map stuff that exists in front of them, that can be observed by their own eyes. But sometimes we have to deal with people who do not follow the on-the-ground truth, forcing Taiwanese to accept things not observabe on the ground.