"I concluded that if anything, the LSD microdosing may done the opposite of what I wanted.
Given that this is the opposite of almost all microdosing anecdotes and this pattern suggests placebo & expectancy effects, I strongly urge any future self-experimenters to up their methodological rigor, and especially to blind their doses."
The last part you quote is really important to understand the conclusion.
Expectancy and mood can really alter psychedelic experiences. Can't be sure for microdosing, though.
Now, how could an experiment up the methodological rigor? Maybe signing a contract where one does accept to be given microdoses of LSD randomly in a period of 5 years, and secretly spilling it on his water?
"I concluded that if anything, the LSD microdosing may done the opposite of what I wanted. Given that this is the opposite of almost all microdosing anecdotes and this pattern suggests placebo & expectancy effects, I strongly urge any future self-experimenters to up their methodological rigor, and especially to blind their doses."