Here goes:
1) Incorporate a live chat system in within BHW. The iRC is great but many people still don't know about it. Having a live chat system will allow more people to find out about it as it is embedded into the actual forum. More people can get to know each other, and also a great way to share stuff and meet new friends.
2) Filter or organise the BST. The BST is becoming a more and more popular, growing section and that is a great thing. However, with so many be services being released, it might be better to categorise each one into sub sections. This makes it easy and convenient for members to browse the BST.
3) Apply Mods in different sections. Instead of having too many moderators moderating a particular section it might be better to apply more mods to certain sections which naturally and generally need more moderating. For example, the JV section. I know that this will be quite tiresome for the moderated, but in the long run, it can benefit hugely.
4) Don't turn BHW into a paid subscription site. While the money made is huge, it jut won't help and it won't look good. BHW is a great, FREE place where members can sign up, share stuff and just enjoy their stay. Keep it that way.
5) More stickies. From what I can see, stickies are now all forgotten. Whenever there is a good method shared, I think the moderators should be able to sticky it so that others can benefit from it too.
6) I disagree with everyone saying BST reviews should be faster. Quite recently there are lots of new service threads. Simply making the process of reviewing faster will mean that lots more threads are approved, and as a result, sellers won't be able to benefit hugely. It's better to keeping how it is, which means that there are several options available for buyers and at the same time, sellers can make money.
7) Further make the rules clear as some people here don't know what certain rules are so they end up breaking them unintentionally.