What happens if there are not enough users joining and the one million daily bonus budget is not entirely spent?

The daily bonus budget of one million PLANETS is meant to be split across the total number of distribution shares (subject to a limit of 38 Planets per share) and allocated to eligible devices based on the number of shares held.

Any fraction of the daily bonus budget of one million Planets not being spent will be burned.

For example, if the daily bonus budget of one million Planets must be split across 20,000 valid distribution shares, then 38 Planets are allocated per share.

This uses 760,000 Planets, leaving an unspent amount of 240,000 Planets, which get burned.