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No that's not exactly it.

The reward curve has been changed from exponential linear. In practice this means smaller users have gained hugely at the expense of whales.

The 10-votes is the optimum rate to maximize your vote output per day. Previously it was 40, now it is 10. You can vote 10 times a day, spread out throughout the day, to maximize how much you give in rewards.

This is a welcome change. I think further tweaking to the reward algo is required but this is a step in the right direction!