Vote Impact
The changes to the impact of a 100% vote are more material. A 100% vote will be 4 times more powerful once HF19 is completed. As it stands now a single 100% vote uses only 0.5% of your remaining voting power (voting power regenerates fully over a 5 day period). That means real users would need to vote 40 times a day at full power to use most of their voting power. This leaves users who are less active unable to fully leverage their voting power. After this change, a single 100% vote will use 2% of your remaining voting power, meaning that 10 full-power votes a day will now be enough to leverage the majority of your daily voting power.

Users can continue to simply upvote-at-will because a vote only consumes a percentage of the remaining voting power, not the total. Imagine “voting power” as a swimming pool that is constantly being refilled by the rain. Every time you upvote you reduce the amount of water (in this case “voting power”) from the pool by a percentage (i.e. it’s not like you are constantly removing 500 gallons from the lake). The next time you vote you are removing another percentage from an already diminished supply.

That means there are still no limits on how much you can vote. The more you vote the more you incrementally decrease the amount of voting power you have (the water in the pool). To get a better sense of how powerful your votes are and the rate at which that power diminishes simply observe how much your full power upvotes increase the rewards of content creators and you should get an intuitive sense of how the algorithm works.

https://steemit.com/steemit/@steemitblog/hf19-equality-coming-soon-linear-rewards