Interesting list, thanks for sharing.
Due to the presence of that list, IMG's I wouldnt be happy with @Crimson Longinus
playing one of his theoretically 'LG' Heroes, who engages in the occasional bloodthirsty murder and bit of Reservoir Dogs torture from time to time 'for the greater good' and also gaining the benefit of a Unicorns lair, or being able to attune to a Talisman of Pure Good etc.
He could play such a PC (an evil monster with a righteous cause) but the PC would be evilly aligned (regardless of his or his PCs views on the topic). His spirit guardians would deal necrotic damage, and he could attune to a Talisman of Ultimate Evil for example.
I clearly explain to my Players (the obvious):
is acts of altruism, helping others, mercy, self sacrifice and compassion. It includes avoiding harming others, unless that harm is in self defense or the defense of others from an immediate threat, and is proportionate to the threat.
is harming others, exploiting them for your own ends, and inflicting suffering on others. An evil person generally avoids mercy, altruism and compassion.
A person who is Neutral
on thiis axis generally lacks the compassion to go out of his or her way to help others, but equally has sufficient convictions to generally avoid harming others. They just generally seek to get ahead in life, and live a good life without being mean to other people, or going out of their way to help them.
person is someone who has a code of honor, and respects family, tradition and stability. They play by a set of rules, either their own, or societies. They tend to be predictable, disciplined, reactionary, organized and unrelenting.
person is someone who is independent, reckless, unpredictable and unconventional. The follow their own whims on the moment, tending to trust their own judgement over a code or set of rules or honor.
A person that is Neutral
on this axis has some respect for laws and tradition but is flexible enough to act outside of this code when the situation calls for it. They're neither inflexible nor individualist.
Most people are Neutral on both axis.
Those are my definitions anyway.