We should gauge drugs based on how harmful they are, from a legislative and social standpoint. There's a lot of misinformation regarding the harmfulness of currently-illegal drugs, just as there is a sort of silence as to exactly how dangerous alcohol is.

Ya, for example, I've seen people react with surprise when they're told (withdrawal from) heavy drinking can cause life threatening seizures.

Perhaps they're arguing for the ability to share information about their psychedelic use without social sanctions.

I'll restate your point: 'they're arguing for the ability to share information about their ILLEGAL drug use without social sanctions.'

That's the difference between alcohol and LSD.

Why is it illegal? Alcohol is vastly more dangerous than LSD. That's the real difference, so it's curious that the legality is the other way around.