I really want to believe it's just an urban legend just for my own sanity but also I wouldn't be surprised if bug chasing was the new trend among teens. I used to know some fucked up people back in school who did a lot of drugs, fucked a lot of our peers, fucked teachers, other unrelated much older adults and so on. I could totally see those people doing this russian roulette orgy I described, that's why I didn't even doubt my friends. Though it does sound A LOT like that rainbow party thing, so it may be just some new horror story
thinking of my old classmates I could totally see them being poly now, too. too bad I'm not in contact with them anymore
but yeah teens are stupid they'll imitate everything adults do even though they're not mature enough to participate and can't comprehend it yet, gendershit, sjwism or the equivalents on the other extreme. they'll do anything to be cool and counter culture so I wouldn't be surprised if poly (and sharing STDs) became the next big trendy thing among youth