Why do people say Diana is evil or bad?

She did kinda murder an entire temple of people, regardless or not that they were going to kill her in the first place.

She's an extremist. She doesn't want to make peace with the Solari, she wants them eliminated and is hellbent on killing despite having nothing to do with her attempted execution.

Also we have the quote, "The moon will rise, the night will last forever." which while being a taunt should probably be taken seriously (she doesn't joke around). You know the downsides of everlasting night? Crops die. Lack of food for plant eaters means lack of food for meat eaters.

is a heretic, but that's not the bad thing. What's bad is that she is an extremist, she can't see that she could be wrong or unjustified. She's spent her whole life feeling wrong, feeling out of place. The discovery of the Lunari was probably the first time she really felt right and she doesn't want to lose that.

The sad part is that she isn't 100% wrong. The Lunari did exist, but that's all we know. We don't know if the Lunari were bad or if it was the Solari who were to blame. We know jack shit about their prophecy.

The sun and moon both experience an equinox, where day and night are of equal length. The Solari removed the Lunari, causing an extreme shift of balance in the suns favor. Balance shifts back.

has become like the elders she slaughtered, just with the moon rather than the sun.

I'm starting to think that the prophecy of the sun and moon was not suppose to have an end. Rather it was suppose to be an eternal struggle or maybe they were suppose to cooperate? The light of the moon is a reflection of the sun after all.

Hers is a story of irony because she became exactly that which she opposed: A religious zealot.

Diana is definitely not evil.She had a right to kill those people the tried to kill her.They branded her with the moon symbol out of spite.The shunned her every time she tried to fit in they and they punished her for speaking her opinion.The Moon shall rise the Night shall last forever!Down with the Sun!!!

She's like a temper tantrum gone wrong for the right reasons, like if citizen A from Country A found out that their country brutally murdered Country B then justified murdering Country A as recompense. (Edit: there's more to it because Country A sentenced Citizen A to death because of the skeleton in the closet but you get the picture.)

A murder is still a murder.

But don't get we wrong that this wouldn't stop me from worshiping dat ass.

Overall no one complains about Diana killing the elders. I mean that went a bit too far to be called self-defense,but it is an understandable reaction after what the elders have done to her.

But the problem is that even after she killed these elders,Diana is taking her crusade even further.She wants to either eliminate or convert all the solari,not just those who did her wrong,but also everyone else,even though most solari probably have nothing to do with what happened to her,or the lunari as a whole(because diana was born as a solari and she had problems finding anything about the lunari,so it is clear that the common solaris don't know anything about the lunari).

In the end,Diana is pretty much doing what has been done to her,just like the moon reflects the light of the sun,diana reflects the cruelty of the solari elders.

Diana is just misunderstood.

She called upon the moon's powers in self defense. I personally wouldn't call her evil over protecting herself from the elders trying to kill her. She's found solitude in something that nobody else believes in and was nearly killed for it. I would say it gives her reason to be irrationally hateful to the solari "ignorant thralls".

When we look at the last quote it does say if people do not RECOGNIZE the moon they will die by her blade. I'm assuming this means to assume the moon exists and has some sort of influence on the world. If one were to be a solari and say only believe the sun exists without the moon having a purpose; than I could agree with Diana to an extent.

I wish we knew the lunari more, I have no idea why they were killed. I'm guessing it could be because the solari were arrogant and couldn't accept a different kind of belief, so a war broke out between the two (Then again the lunari could be the same way, we just don't have any information).