There's no reason the party with unsafe UV lights had to be a crypto-party. While I'm no NFT bagholder, it bothers me that the article is mostly about dunking on cryptobros than talking about the dangers of hazardous lighting rigs at a show. At any event, how is an attendee supposed to assess such a thing? It's not like you can DYOR.
If you see clear tubes emitting a light blue glow, close your eyes and get away ASAP.
One of the few positive things about the pandemic may be that it's educated lot more people on what UVC lamps look like, as they're often used --- away from people --- for sterilisation purposes.