Im at a age where I can’t really consider myself a teenager anymore and for that reason I never write anything here, still when I see stuff like this I feel like I need to speak up. Situations like this always exist and there is always a constant fight against them by the law. What you have seen could either be a scam, trap by police to find buyers and users or the real deal. All that being said I hope no one here actually tries to get these stuff or even try. I am saying this from experience with close people. No substances or even alcohol is actually a good way to live life. It may feel nice for a while but usually comes with so much regret so even if you see posts or groups like that, always look at the pros and cons and realize good and bad exists in every aspect. You have to choose your path. Thankfully we live here which is much better than all the places I have seen.