I came to make this suggestion, but I think limiting it to roman characters only would help a great deal. This allows players to still use accented letters ( í , ň, é , ů , á etc) on both NA and EU servers, while at the same time, eliminating the ▯ names. Even among my allies, it gets hard to tell people apart (even with Steam display names enabled). I can't imagine trying to report someone with a similarly styled name. Even with video proof of cheating, it would do no good.
Bear in mind, this wouldn't force players who normally use logographic alphabets to have "English" names, since it would still allow for accented characters. As an example, something like 海盗 (pirate in Chinese) or 海賊 (pirate in Japanese) would simply become Hǎidào and Kaizoku respectively.
