Comment by demiters

I can only speak for my own circle that I know about where test kits are the norm. Anecdata isn't ideal but it does seem to be valuable as long as the reader considers both positive and negative reports equally and understands the risks rather than just yoloing. I still consider Erowid a great harm reduction resource, TripSit wiki is also fantastic, and I very much support the approach taken by the Subjective Effect Index website.