hey, i think your JOSM settings might be misconfigured, looks like you've added source=esri to >100,000 nodes in the past few days: see https://overpass-turbo.eu/s/26Q0 and https://osmstats.neis-one.org/?item=countries&country=New%20Zealand where I noticed the spike

I believe it's a common issue for JOSM users, but i don't know any more than that