@vinter
@mander.xyzPezizales, at least haha Ascomycetes, especially cups, terrify me. There are so many that look macroscopically identical
Pleurotus sp, aka oysters. Spore print won't really help here, most things that look like this are white-spored or near. Think of spore prints as a way to occasionally rule out something else, not mandatory for a positive ID
The goo is edible too! Flavor intensifies with this process. Some folks like to use it for pasta or sauces, kind of like a vegan squid ink
To your second point, no they don't. Coprinus comatus does not contain any benzocoprines, and does not interact with alcohol. Coprinopsis atramentaria is the one you are referring to. Completely different genus - and not one I'd recommend eating anyways, besides the alcohol interaction they have been found to cause testicular lesions!