Yes. Which is why I think there's tremendous risk for a bunch of idiots on the Internet to be railroaded because the thread they participated in ended up being a very serious one.
At some point in time I don't think it's worth picking apart that nuance anymore. Like, it's great they're not committing acts of terrorism daily and are instead only doing so every few weeks, I guess, but there's really no reason to defend the people who are promoting this behavior in order to protect the use of grade-school irony.
Good thing you have nothing to do with the justice system, then.