That’s what Edward Dark reported last week:
[I]t would be foolish to believe that US military action against IS is popular here or will go down well, especially when civilian casualties start to mount. On the contrary, it will most likely prove counterproductive, stoking anti-Western resentment among the population and increasing support for IS, driving even more recruits to its ranks.
The terror group knows this well, which is why it is secretly overjoyed at the prospect of military action against it. In its calculations, the loss of fighters to strikes is more than outweighed by the outpouring of support it expects both locally and on the international jihadist scene. And its fighters are not afraid of martyrdom by US bombs. In fact, the chance for martyrdom is why many of them came to fight in Syria in the first place.