While still signaling 20%, I'm in favor of gradually decreasing HBD APR to 12% over a longer period (like 8 months, for example, 1pp each month) with a clear and public signaling of such a move. Mostly because it looks silly, in other words, it's "too good to be true", rather than being a treat to HIVE or HP. I don't think we could convert HBD investors into HIVE investors by just changing some figures. Stablecoin gives a different promise. While keeping a steady value, having a fat interest rate, it also almost guarantees no price surge. The first one is especially important during the bear market. If we hadn't set it to 20% back in time, we wouldn't get those people who bought and withdrew HBD from exchanges. They would go for a different stablecoin, not for Hive. HBD does not cannibalize HIVE.
Making HIVE attractive is a totally different thing. I don't think decreasing posting rewards might help in the long run. This might discourage some authors from selling all the rewards, but it will most likely discourage authors from posting at all eventually. I would like to see more active users than more passive investors. We can't mess with posting rewards as we don't offer anything meaningful but this atm. Maybe we should pivot from blogging chain, into a fast, cheap, efficient and easy to use blockchain for gaming. We could get rid of the rewards from L1 and prepare a solution for content monetization with L2 for existing frontends. It would be easier to encourage other devs to develop dapps/games on HIVE if we market ourselves as a non-app-specific chain. This would also make an RC mechanism meaningful. We need users that broadcast many more transactions daily and it's only possible with gaming. Instead of restricting newcomers, we should limit hyperactive users, but we must have such users in the first place. We could offer an awesome user base for every app that decides to develop on our chain and great apps to interact with everyone after powering HIVE.