Also if you're wondering, the query looks for nodes only (since only nodes were imported), that are visible (bbox) and have not been modified since 2012 (the import took place in 2009, but overpass doesn't support dates before 2012). The idea is that if such a node has never been modified, it's probably in its original position, which is probably inaccurate.
And this looks pretty bad. I found my new hobby ^^"
@roptat pretty cool