#find it yourself.

[community-notes-real]

apparently a 4chan user made people make chlorine gas by posting an image of a crystal.

and i'm pretty sure that violated some kind of convention

Readers Added Context:

An anonymous 4chan user posted a picture of pink chrystals and explained that they were easy to make with common household items. And while the process worked, it also created chlorine gas or Cl₂. It's a highly reactive, explosive, and poisonous pulmonary irritant. Inhaling it is highly dangerous and can be lethal.

(Source)

[sugarstarlights]

i'm a marionette -abba

.. i’m not linking this one