My friend is a crazy heavy anime watcher. One time he decided to watch an anime without subtitles, and he understood soo much… Pretty much got it all. Didn’t study Japanese, just casually having nearly 300 days (7200 hours) of watch time according to MyAnimeList.

It’s cool and all, but there are MUCH better and faster ways to learn Japanese than spending 2 years non-stop watching anime to reach his kind of level