Some adopt while others have their own biological children.
Some cities make their own rules, some adopt their county's, others have none.
Some adopt a systems-based approach (the cardiovascular system, the nervous system etc); others a problem-based approach.
Some adopt a resource metric (Dworkin 1981b); still others, a metric based on opportunities for welfare (Arneson 1989) or access to advantage (Cohen 1989).
Some adopt compatibilism, affirming the compatibility of free will and determinism, and conclude that foreknowledge is no more threatening to freedom than determinism.
While some adopt a dualistic approach, keeping regime and niche level activities technologically and commercially separate, others develop integrated strategies where niche activities are leveraged to impact upon the regime level.
Some adopt a consent-based objection and condemn cloning because the person conceived cannot consent to being exposed to significant risks involved in the procedure (Kass, 1998; PCBE, 2002).
This division is a sign of the differentiation between spammers: some adopt strategies based on high volume over a certain protocol, while others may send lower volumes, using more machines, over another protocol.
