Ah no that's not quite right. It matches URLs that _end_ in a country code, because apparently spammers do that a _lot_:
https://metasmoke.erwaysoftware.com/search?utf8=%E2%9C%93&title_is_regex=1&title=https%3F%3A%2F%2F%5B%5E%3C%3E%22%27%5Cs%5D%2B%28%3F%3C%21%5B%3F%2F%5D%5Ba-z%5D%7B2%7D%29-%28%3F%3Auk%7Cca%7Cfr%7Ces%7Cza%7Cde%7Cau%7Cit%7Cdk%7Cbr%7Cnz%7Cbe%7Cse%7Cus%7Cch%7Cnl%7Cat%7Cid%7Cno%7Cie%7Csg%7Cpt%7Chr%7Cpl%7Cmx%7Clt%7Clu%7Cfi%7Ckr%29%28%3F%3D%2F%5B%3C%3E%22%27%5Cs%5D%7C%2F%24%29&body_is_regex=1&body=https%3F%3A%2F%2F%5B%5E%3C%3E%22%27%5Cs%5D%2B%28%3F%3C%21%5B%3F%2F%5D%5Ba-z%5D%7B2%…