This.
Whether it's an old lore idea or a player made belief, it doesn't exist in the current lore.
This is the implemented lore of Tahariae. There's no mention of justice within it.
The Clerical lore that our magic is based off of, that came after the lore post of Tahariae, labels Tahariae as the Aengul of Purity:
If you are to Ctrl+F the words Purity& Pure, it's mentioned over 30 times within the document alone, declaring him as such and our mission to be of such.
If you are to Ctrl+F the word Justice, it's mentioned 4 times. One instance is in an example emote and prayer. One instance is in the history explaining how a group was made to bring order and justice. The final two times justice is said, are in Hesh's interpretation of what Tah wishes for us to do, one time saying he's a symbol of justice and the other time telling us to guide people with justice and wisdom.
I'm going off the current accepted and implemented lore, obviously, here.
Rply, my character's teacher never spoke about Tah as being a symbol of Justice and she doesn't see him as one either.
Truthfully, if we're to look at what Justice really is:
That isn't what Tahariae is about, and this is shown in his lore:
A giant of a building would dominate his, built from the finest of white quartz fashioned into bricks and moulded to form the image of a courthouse. With colossal pillars that consumed the outside of the building it almost would appear threatening to the ordinary eye, a place of judgement and with it, punishment.
However should you enter his courthouse the layout would not be that of a mortals thinking. There would be no jury, audience or even a place for a defendant to place his case. Only a single seat; that of the judge.
While a courthouse normally does symbolize justice, Tahariae's courthouse is nothing like a normal courthouse. It lacks the audiance, it lacks the jury, and it lacks the place for the defendant to plead their case. All that is there, is Tahariae, the judge, waiting to deliver a verdict for your fate.
That isn't justice, that's false justice. That's judgement.
That's an individual making a single decision about you, without hearing the reasons or the explanation. There is no mercy, no remorse, no time to repent. Just swift judgement.
And this ideology has only been furthered by the Tenents, Woes, and Commands, forcing us to kill dark creatures without second thoughts, without the ability to find other alternatives, and without discretion.
Perhaps long ago he acted with more Justice than currently seen, but with current lore and practice, this isn't Justice. And it wouldn't be the first time in history that an Aengul's ideals or wishes have shifted over time, our own clerical lore is based off of it with the Aengudaemonic and Dwarven patrons of the order relinquishing their power over the clerics and gave them to Tah.
If he's meant to be Justice, then it needs to be added back to the lore and our lore needs to be curtailed to be more about bringing justice to the realm than just damning everything to holy fire hell for being the slightest bit impure.