Maybe eventually, but bots will certainly begin doing this immediately and any real posters will likely get drowned out in the noise.
Algorirhmic trading will devolve into meme-producing AIs trying to trick other AIs into tricking investors into pumping random assets. There will be bots designed to accuse other posters of being bots and AIs created to try to pick out bots (and, of course, bots designed to trick these AIs).
Some of this is already occurring, but it is about to get so much worth once "mementum" becomes a trendy technical indicator.