I tried linking to the rick roll video (just as a test url) and it breaks because it seems to lowercase everything.
Original url : https://www.youtube.com/watch?v=dQw4w9WgXcQ
Linkmoji url : http://馃崟馃挬.ws/馃崓馃摝馃弬馃巿馃幘馃攽
After following the link : https://www.youtube.com/watch?v=dqw4w9wgxcq
And then you get a 404 not found