Dev teams for big companies are actually like entire offices divided into various departments, each devoted to a specific part of the product development.
"The Devs" aren't a plucky group of friends all sitting together around the same table, they're workers who live in their own cubicles and probably want nothing to do with the game once their workday is done - that is, if they're not getting burnt out by the infamous Crunching habits of the gaming industry.
Individual members of the development team might skim the forums, but they most likely don't take anything from here to bring to any sort of office meeting they'd be a part of. Even if they would do that, any little change or addition they might suggest has to go through chains of review and approval - and considering any and every little thing costs exorbitant amounts of money (everything translates into work hours, at the very least), don't expect anything to come of it.
