Overall I agree these are good things, but they're potential for abuse is way too high. Randowhale for instance does the opposite of add to content quality. Remember you're paying for a vote so this is the opposite of a uncorrupted democratic system. Randowhale upvotes anything the only barrier being 2 Steem and a bit of luck. It's good for beginners but it's also abused as a way to make shit content look better and make money for doing/posting nothing. Whaleshares are a bit more curated so those are better and more democratic.
Disclaimer: I've used both and will continue to do so.