Agreed the enemy is watching Q. Agreed Q can't give away the plan to the enemy. But what is the point of constantly saying "Something big about to drop." Eventually even the enemy will stop believing it. The same goes for, "A week to remember., and suggestions of FISA.
I know Q said hints expend ammunition, but if you give them the deke all the time, even the enemy is going to stop falling for it.
Sometimes trick plays suck.