The article in question addresses a slew of instances whereby the US law system has manufactured their own terror threats and crimes out of incompetent and relatively benign 'terrorists'. However, the commenter linked in this instance believesthat this is a good idea. To wit:

I would argue that it is better the FBI doing this than actual recruiters - if the FBI is able to talk them into doing these acts, then the real recruiters can and will do so as well...

You know that something's gone wrong when people are arguing that the Justice Department creating their own terror threats is a 'good' thing.

Terror crimes are generally considered to be bad regardless of who's behind them. Yes, there's a certain statement behind the above statement. But there's still the issue of the nation's Justice Department creating their own crimes, rather than stopping them. How exactly is this appropriate behaviour for a 'Justice' Department? And to what end are these crimes concocted?

While these instances have the result of foiling a would-be terrorist, they also have the effect of ratcheting up the fear and tension in their country- which is fairly close to the original point of these terrorists. The more foiled 'terror plots', the greater the perceived security threat, the greater the sanctions imposed on the US, leading to events like the Patriot Act being approved and implemented across the nation, increased police power (as pointed out by a commenter further on), and wide-scale surveillance of innocent citizens.

Once you examine the consequences, it becomes clear that it's not better to have the FBI creating these crimes, as proposed by the commenter. In fact, what would be better is the FBI stopping actual, non-assisted/manufactured/manipulated threats, rather than expending resources on creating their *own. That is, after all, what they are supposed to do.