It's not entrapment. Entrapment is a very narrow set of circumstances.
>The key aspect of entrapment is this: Government agents do not entrap defendants simply by offering them an opportunity to commit a crime. Judges expect people to resist any ordinary temptation to violate the law.
Given that FBI is famous for catching terrorists 'red-handed' with bombs they provided, who were recruited to commit terrorist acts by FBI agents, and sometimes are mentally ill, I'd say the standard for entrapment is quite high.
> This is entrapment, and is therefore highly illegal and in my opinion immoral as well.
This would not be entrapment as I described it (emulating the site in the article). I agree with you that law enforcement has been guilty of egregious entrapment by hanging around conservative mosques initiating contact and actively promoting jihad, then encouraging any vaguely interested response to the extreme of supplying the idea, plan, accomplices and means.
What I described was a "murder for hire" site hiding on the dark web and requiring initiating and inquiry, responding positively, specifying the 'hit', paying in advance in bitcoin and finally supplying a name, address and photo of the person to kill.
While non-terrorists certainly attend conservative mosques, it's hard to see how someone NOT very interested in commissioning a murder accidently sends an inquiry, specifies the job, pays a hard-to-get currency in advance, etc.
This is entrapment, and is therefore highly illegal and in my opinion immoral as well.