Yeah, that's the problem, doing it always and not giving some voting power to new users or different ones. The worst is when they only do it to get a vote back in exchange. It's really not hard to delegate part of your HP to curation projects or just follow a trail of those or other random hivers you think will use it well, they found their way to that website that enables trail following but chose to follow one that's literally called backscratcher meaning they'll get a vote back on what their vote is worth to turn it into 100% self-voting pretty much. The 50% curation rewards is 50% for a reason, else it would just be 100% staking and no post rewards and we'd be just like any other DPOS/POS chain where content is irrelevant - like Steem's trending!