Thanks for the catch on psychedelics, my autocorrect messed that one up and I didn’t notice. Also, while I know actual lsd can’t kill you, I have heard that there can be contamination one some with elements that can (admittedly secondhand knowledge, but still). Testing kits seem to pretty much catch it, but I think if someone is inexperienced they might not know better. More just trying push them towards shrooms first, as it can be a safe first step.
It’s generally 4acodmt, which is similar to pure psilocybin. It’s most assuredly stronger than shrooms, and as you said I think you could probably confuse it with acid. That being said, you could theoretically take too much of it due to the concentration and be harmed, as while shrooms take a bit of time to digest, 4aco doesn’t. Also, much the same issue as acid, it’s harder to produce so there’s a slight chance of contamination that could be deadly (again, word of mouth but I remember a lot of long time shrooms users being wary of the chocolate bars as they didn’t want newbies to start with them and be potentially harmed).