Hi ! I prefer to have the game first revealed with gameplay footage accompanying him, but I prefer when it's done on the Discord server or the forum's Chat; first, you work on it there with others, then you put up a page in Module when it's playable, and improve it as non-dev feedback starts to come. That way, we work to balance the ratio Cancelled/In progress/Finished on the forum.
However, not everyone use those ways of communication, and doing it that way prevents you from fine-tuning it with other when it's just a concept, which may cause you to start doing hard works or design that you will have to give up on anyway because they'll simply won't works with the engine, so that's not ideal either. ^^'