It's a fake area, a cover up to suggest BB listens to the players.
They know a lot of suggestions come in, so everything they do is probably sugegsted somewhere. Then they can say "see, we listened to that suggestion. Oh and a many people didn't agree with the suggestion to introduce aliens and tanks, so we're not going to do that!"
Well if they would say that it would be a big improvement. Because in fact they dont say anything at all. Nothing. What happened with:
* Can you change the colour of the chat/whisper? Some just dont like it, others really cant read it.
* Can you please let us build bigger batches in the baraacks/provisionhouse, the amount of clicking is getting out of hand.
* Could you maybe look into the troubles with the guild-quests?
Easy questions, easy suggestions. But BB is so rude to not even react to the serious suggestions the players make. If you dont do anything with the suggestion-area, then just skip it. Dont give players the hope the developers are listening.