It’s likely because some light fixtures that emit a ton of UV light also look “cool” and get used in the wrong setting. They’re supposed to be for stuff like disinfection. Looks like the bulbs outlining the dj both could be the issue. It wouldn’t be any of the professional fixtures. (Pic in comments because I don’t think you can upload an image in this community for the main post)
People that are negligent with their finances are more likely to be negligent when it comes to the quality of event coordinators they choose to work with. Because we’re talking a pretty extreme degree of negligent personality to get sucked up into all the NFT hype.