I think theymos should continue to roll things out at the pace he feels comfortable and not be pressured by community members to make changes. I also think his time is likely better spent elsewhere then doing a newsletter.
I think that any changes have to be considered quite carefully. In my perception, there are a couple of things that could be done immediately, but I don't have an informed overview of the boards, and I don't know the secondary objectives of the forum. The multi-account spamming and bot signups don't seem to have any perceived advantages, but they do create massive amounts of traffic, and also discussions in Meta. I think this is probably of low value, and the unused ad spots would seem to confirm this.