The fact that you're asking this makes me wonder if one (or both) of the following things have occurred for Fanime 2016.
1) The big name group you thought was going to show up has canceled. You know you can find local acts to fit the bill, but in order to justify it, you're going to ask attendees so you can later claim that you're catering to what (a small percentage) of your attendees want. In other words, a Fanime 2012 repeat.
2) You're looking for ways to cut costs to fund the money into....'better' and/or more guests? Free water for all attendees? Staff that can announce things in a timely fashion?
Fanime's one saving grace was their ability to get a solid Japanese group to perform. Even when the rest of the guest list was (largely) disastrous, MusicFest would always round things out. I even contemplated missing Animazement, despite them landing Nobuteru Yuuki, because of Home Made Kazoku in 2014. For someone who has little interest in musical guests and goes to conventions solely for the animation guests, that was quite notable.
I hate seeing topics like these because I've seen similar request threads ignored in lieu of whatever Fanime management was already planning to do. I guess it's great that you're the only large convention that I know of that still has a forum and allows people to post their thoughts, but I often wonder if that's just a meaningless gesture when our voiced concerns are rarely addressed.