my spanish is too bad to express the issue, so I write in english.
I recently went by bicycle to Ushuaia, Tierra del Fuego and currently do some “OSM Homework”. I noticed, that user
did some vandalism in Ushuaia (or was really unlucky with his edits). I commented all three changesets, but did not revert. No changeset added usefull information/data. Each broke something. I guess the motivation is the upcoming G20 event, see changeset notes. Watch out this area for further OSM-Vandalism.
Best Regards from Germany, were Nutella costs a fraction of the argentinian price