The use of the word "steal" remains improper. The coins subjected to this process of recycling would be the ones of "dead" wallets, i.e those wallets that have been inactive (no transaction) for a period equal to the full mining cycle (131 years). This same thing happens in nature. The universe doesn't steal energy from dead bodies, it recycles that energy channeling it back into the system. Bitcoin has a curious habit of mimicking nature when it comes to energy.