It is very important to have a section for members to post their suggestions and/or issues. Being the owner of a forum, you get caught up with promoting it and making it look visually appealing, which is why you tend to miss out on a lot of issues. This section is great, as your members can then let you know, so it's basically like a bug tracker. Taking suggestions can also help your forum grow as many of the suggestions given usually help benefit the community, and guests will enjoy seeing that you implement ideas from the community members.