Here's a suggestion I hadn't thought of before. Currently, there's a referral link for each user. It would be great to incentivize that by having an affiliate program for BHW where user's get paid a % of money spent on donation and products by users they referred to the forum. Now that there's going to be payment processing on BHW, this would be much easier to implement. The donations % would best be it's own thing. Sellers in the market could opt into an affiliate program so that users can promote certain threads and get a % from sales they refer (Along with any donations made). These two measures (Especially marketplace affiliate links) would definitely boost memberships, donations, and market transactions.