A: That is the exact amount of time it takes to recharge its voting power.
Q: What happens if the transfer is sent just before payout?
A: No upvote will happen in that case. @bellyrub is implemented to ignore posts (6 days) + (14 hours)
Q: Can voting only be done on posts or can comments work as well?
A: No only posts.
Q: What happens when 2 different accounts vote on the same post?
A: Any transfers by any accounts to the same post within the same timeframe will try to stack (combine) into one bid. Please note, the bot cannot stack bids if a vote has already been cast.