Yep, there's no such thing as a placebo when it comes to LSD.
"If it's bitter, its a spitter"
That's not the point. NBOMe compounds also fit on blotter paper with similar potency to LSD, yet have significantly more dangerous side effect profiles.
https://psychonautwiki.org/wiki/25I-NBOMe#Toxicity_and_harm_...
Also if it's bitter don't take it.
Don't just swallow potentially lethal substances!
Test them (don't taste them!) first if you're not sure what they are.
If you're tasting something that can kill you it's already too late.