I’ve been searching around, not very in depth mind you, and I haven’t been able to find an instance of it being outright illegal in any western country. It ranges from being an accepted function of the jury, to being something that exists theoretically within the jury system but not being explicitly discussed, neither encouraged nor discouraged, in the the legal framework, to being not applicable at all because they don’t use juries at all.

Removing the US component to this situation and knowing that LW is hosted in the EU, I can’t find a single country that would impact the ability of people to discuss jury nullification on LW.

Again this is based on some cursory searches, so if I’m wrong and jury nullification is illegal in some EU country, please let me know.