I guess this becomes a different type of problem now.
The Krako73 account started making changes almost immediately after the account was opened and kept up the same pattern of changes until just now. That would suggest that this was not a new mapper but a new account being used by a mapper who has some experience with OSM.
I agree that this suggests the mapper will return shortly with a new account to continue the pattern of changes. So I suppose we’ll need to look for that.
The mapper clearly does not intend to discuss their changes, so unless there are objections, I propose to revert all the remaining changesets discussed above and in the Various landslide tags replaced with hazard=landslide thread.