The declined post rewards are human error, to be quite honest :) When writing from the main Hive account on behalf of the whole platform, there's no need for rewards to be collected and it makes much more sense to leave that portion of the rewards pool for the rest of the userbase, or to channel it in to a slushfund to put behind more events like this one!

However, while you will see we set a beneficiary to do just that, the UI didn't indicate setting that beneficiary would not override "decline rewards" which was the past default. So that one is on the poster for not catching while working on the final draft. We've made a note to always check it as when the rewards are declined the post won't trend by most front end algorithms, and that's not ideal.