I did not find my psilocybin trip pleasurable. With the exceptions of 1) micro-dosers and 2) those that seek mind altering experiences as a lifestyle ... the studies have reinforced my personal experience: once seems to be enough. (Edited to make clear my opinion vs facts)
I feel that you are posting some very irresponsible things in the comments here in a very authoritative tone. I would kindly invite you to refrain from doing so, since I disagree strongly with your various assertions. Perhaps you can offer your views as your personal perspective rather than objective truth.
Caffeine is a mind altering experience. Eating too much sugar is a mind altering experience. Drinking alcohol is a mind altering experience. I have had extremely pleasant and also terrifying psilocybin trips. They have all been constructive experiences for me.
They may be right when they say "is not pleasurable" - since it's not like a typical pleasure substance where it's nothing but good feelings. It's highly dependent on set and setting, as you no doubt know well; so the key thing here is to help usher people towards having good experiences and not just experimenting with something without doing their reading first.