Thanks for showing interest @luizeba!
The way it works here is that the voting power doesn't accumulate but instead it gets reditributed to all other shareholders that are active. It's one the reason that the upvotes are so much higher compared to Voting power / amount of shares. Not everyone posts each day and since the project has been running for years there are many shareholders who kind of dropped Hive while leaving their shares in place (they can be sold at any given time). The point of this project has always been to reward those that are in it for the long run and are able to put in the consistency the most which is exactly what the project has been doing.
I would say, all the numbers are out there and you can make the calculations to see if it is worth it for you.
If you have more questions, always feel free to ask!