I do, since it's like saying 1+1 = 2 for the Mafia game. So, basically, I consider it as a trivial matter.
Say, if I make a guide for the Mafia game, include this suggestion in that guide and link to it in my sig, would you think it's influencing the game? Because it really is a general suggestion, not circumstantial. I won't even know if there is a Freeman in the game, and if there is one, he shouldn't reveal his role no matter what.
For the record, I wouldn't really constantly bring up the "Freeman should shut up" argument to avoid getting silent people under spotlight and pressure, as you said, alive or after getting killed, doesn't matter. It was just an exemplary suggestion which I deemed as trivial.