So you've done some etorphine? sufentanil? 1,4 butanediol? flunitrazepam? ALD-52? 4-MeO-PCP? α-Pyrrolidinopropiophenone? Flephedrone? CP 47,497?
There is no way anyone can come close to listing all the drugs they haven't done... and practicality aside, what harm reduction value does this have? If you can explain how this reduces the harm in any way of people out there who are using substances, please PM me and I will immediately open this.
If you have to "explain" how your thread has harm reduction value, chances are its going to get closed. If the harm reduction value isn't evident without some explanation, its not sufficient.