Ever since I started listening to emma essex's music I have found just how half-baked Unicode handling is, even in current year.
Some of my favorite examples are:
"⎆", by "HHSU 𓃚 𝕮𝖆𝖒𝖇𝖎𝖚𝖒, 𝕏𝕪𝕝𝕖𝕞, 𝓗𝓮𝓪𝓻𝓽𝔀𝓸𝓸𝓭", from the album "𝅙𝅙" (U+1D159);
"♫♫♩♫‿♩ but it's 怒首領蜂 大往生";
"ｒｔｒｃ{（''»''）²２}：≞（''»''０１）；";