Hit by the brick-and-mortar meltdown years ago, it attracted short sellers, which attracted meme stock traders, which blew up the short sellers, and then each other.
A chart like this is an indictment of Wall Street and the hype-and-hoopla machine that pumped and dumped this stuff on the most gullible retail investors ever.
This crash beneath the surface showed something had broken, that the magic had died, that hype and hoopla were suddenly unable to carry the day (transcript).