Well USF is manpower starved, so I'd assume anything that would help them in that department would be useful, if it worked.
Considering that almost all of the bulletins are worthless, it would be worth trying.
I've done a lot of testing with the bulletins to see if they matter much. In general, they don't. Stacking 3x penetration bulletins onto ZIS, it took 1 fewer shots, on average, to kill a KT. Considering that the number was 18 vs 19, you're not very likely to have it help in game, even on slow-moving KT. Stacking 3x reload bulletins on Jackson still didn't enable it to solo a PIV if they ran into each other in the fog of war.
Stacking 3x of the cheaper Soviet mines could be helpful, but announcing your intentions like that just reminds people to buy a mine detector.