Argh! My very sincere apologies!
I thought my script only checked if a municipality had a website - and if it didn't have one, it added it. It wasn't meant to remove any data (except for websites that returned a 50x response) when I had a better alternative.
Please feel free to revert my work. I'll see to separate out the script that looked up (and validates) websites and submitted the missing ones.
Not sure how to interpret the deep history link. But since this is my first dive into the OSM API, I'm confident I messed up.