> IANAL but is CircuitSeuss not committing a crime here by giving the advice

> "If you are discussing illegal shit, don’t do it around people or devices you don’t completely trust. Retain plausible deniability."

> Or is it legal to discuss "illegal shit"?

The answer to that question is extremely jurisdiction-dependent. That being said, in the US the statement you quote is almost certainly not illegal under current 1st Amendment jurisprudence. The main case of interest is Brandenberg v. Ohio [0], which held:

> Freedoms of speech and press do not permit a State to forbid advocacy of the use of force or of law violation except where such advocacy is directed to inciting or producing imminent lawless action and is likely to incite or produce such action.

[0]: https://tile.loc.gov/storage-services/service/ll/usrep/usrep...