You're able to write snailmail as well, or there are phone #'s, but unless you know the # of someone with clout (IE: you're buds with the old decision makers), calling's not adviseable.
Writing never has hurt though, and replies aren't out of the question. Just make sure you're eloquent and polite. Professionalism is key in business. Whether you get a reply back or not's of no relevance.
And Hasbro does read the message boards. They always have, as it's a resource to them, so make sure you are vocal about what you like and dislike, and why you like o dislike things. You have a voice that can be heard. Just not a say in any final decisions, haha.
Too bad sometimes, given some of the really innovative ideas I hear around the various forums I visit like here at Jedidefender.com, Galactichunter.com, and Scum's forums.