LSD is capable of doing great harm and great good IMO. Tripped about thirty times back in the 70s, but wouldn't do it again without some serious soul-searching. OTOH all of my trips were a helluva lotta fun, intensely tuning into colors, music, sex. Good times. One reason for hesitation is that LSD dosages are measured in micrograms rather than milligrams, and it is easy for the manufacturer to put an excessive amount of acid in a hit, and too much acid can be too intense.