i didn't use D.buzz for a while, i think they started as a main post on hive? problem was autovotes on posts. Now solution is to do containers and not post it as main post, so you will not see 10$ rewards on 10 sentences of short content.
my take is, anyone willing to lock its hive for weeks to distribute it to other people deserves part of the reward. it is mining but better, because you share part of it with others.
for me worst thing is selling everything you get and not using it to reward yourself and others.