Was speaking to my GF at the time. She is a big head in the kratom industry and decided early on that she didn't want to have any part in 7. That's how I got the free 20g lol, I'd made it with her (so romantic!) and by the time it didn't smell like solvent, she didn't want it anymore. We were observing the whole 7 addiction thing really rear up and we came to the conclusion that in a weird way, because it IS safer than traditional opioids in regards to respiratory depression, you can actually take more and more without as serious of health risk, and combined with the ceiling effect, allowed people to take massive amounts which caused tolereance levels to skyrocket to the point that are hard to reach with H/Fent safely or without serious financial drain.
Man I got mad stories about the industry and life in general, that you won't hear all the time. :D