If a user fails to end their mining operation during the 30-day "end mining period" (61 days after the initial mining start) the user will forfeit their PulseBitcoin Reward and lose half of their ASIC Token(s) used for that specific mining operation.
After a miner has "expired" anyone in the world can run the "Good Accounting" function, which will end a specific expired mining operation. This "clean up" function will remove those ASIC Token(s) from the PulseBitcoin Smart Contract, reward the caller of the good accounting function with half of that ASIC, send the remaining half to the original address that started the mining operation, and burn the PulseBitcoin (PLSB) reward.
To clarify, 3 things occur when the Good Accounting function is called for an expired miner(s):
Go through the timeline below for more details: