As intended? Because intentionally introducing terrorists to each other is a serious criminal offence in a lot of places.
I can see how this kind of thing comes about; it's very silicon valley to assume that 'murder' and, say 'gardening' are just rows in a database and it would be inappropriate bias to declare one to be better than the other.
More interesting is how Facebook classifies these traits automatically? I can see someone specifying gardening as an interest but even one of those asswipes presumably have enough intelligence not to specify terrorism as a hobby
I can see how this kind of thing comes about; it's very silicon valley to assume that 'murder' and, say 'gardening' are just rows in a database and it would be inappropriate bias to declare one to be better than the other.