Let's take those masons for example. What are we going to do, tell them what to talk about at night? Sure, we could have arranged to have the doctor protect the cop. However, since that person would also be known, we would essentially get one good investigation in exchange for a dead doctor. The cop would then be picked off the following night anyway, ensuring that the one investigation is all that we would get.

Having everyone announce their roles is a bad idea. Publicly broadcasting our plans for what those people should do with their roles is an even worse idea.

We have nothing to gain from a mass roleclaim at this point in the game, and a great deal to lose. Many people already find you suspicious, and your continuing attempts to make this happen are definitely not helping.