Manual and Organic healing must exist, is why I bet.
The automatic vote and the users themselves, it seems to me that it does not give others a chance. I also think that there is nothing better than taking a look at the work of the one you give them your vote and see if they are really working and sharing quality material or just doing it to do so.
I think that manual and organic voting gives more value to the platform, the interaction between people in real time is perfect.
24 hours is fine.