1 - No need. It's neither a new forum, nor a failed one that needs lots of improvements to be done. If you have one suggestion every 2 months, it's not a problem to PM a mod, or make a new topic here -.-
2 - You know, being an WoW mod does not mean that you are able to press the "Lock this Topic" button, or the "Remove" Button. It also requires knowledge. And I haven't found any person who knows perfect CS, HoN, WoW, Dota, AION.
3 - LoL
4 - We've already started a few discussions about this. You shouldn't be making such suggestions before the last wave of promos/demos arrives.
5 - Look 4
6 - Won't happen.