Create a Lightning invoice for 0.00000000 BTC or less to claim article's pending earnings.
i believe the advantage to this is not having to pay two fees to refill an empty payment channel. normally to refill a channel you would have to close and reopen resulting in two fees. this circumvents it by only having to pay one fee. Where another node will pay an invoice you created and refill the channel.
Not sure what's the advantage of this (vs. funding the channel myself)?