It was an interesting attack, and a resolution is now in place. Everyone needs to update their bots/services to ensure they're sending less transaction per block. I guess it was a good thing it happened now when Hive is still relatively under used and allowed the devs to put better practices in place, even if it did knock the sloths buzz for some time! Should we be thanking the user for showing this vulnerability? Everyone loves a good beta test after all!