Actually I am a sorry for this dismissive answer. This was inappropriate. And after only a couple of seconds of thought, I noticed (at least) one of your point

Actually I am a sorry for this dismissive answer. This was inappropriate. And after only a couple of seconds of thought, I noticed (at least) one of your points is not related to the danger of addiction and indeed very interesting. Even without danger of addiction patients might confuse short term and long term effects. On the other hand this doesn't seem to be the case with anectodal expieriences I read about the use of (hard) psychodelics, e.g. LSD, mushrooms, etc. Edit: Also as my dismissive answer already suggested, my question was not clear.