That’s your intrepertation of what I say, I’m sorry cannot convince you otherwise.
If was just the naaru that fueled the sunwell sure, but the power that purified the naaru was velen, so one could say it’s velen’s power that also fueled the sunwell originally.
Naaru can only be currupted once they leak out enough light energy for it to do so. Kinda like puncturing a hole in a balloon, but unlike the balloon, if left alone they regain their light. There is no lore of them being being currupted naturally through rituals, The sunwell I don’t think can be damaged for that same effect.
Kinda oranges and apples. Being that the sunwell isn’t just the naaru that purified it. Also it is speculative whether or not the etherals can even effect the sunwell connection.
From gamepedia;
Naaru can die, but if their physical form is damaged, it may bleed their energy causing them to enter a darkened state[41] in which they are weakened and produce void energies,[42] becoming dark naaru [43][44] ( Dark Naaru )[45] or darkened naaru .[46] A naaru’s darkened state is different than death. Their energy may take up to one thousand years to regenerate.[47] It should be noted that some darkened naaru still appear to harbor altruistic intentions; however, their weakened state may be exploited for nefarious purposes, such as creating void minions[48] and raising the undead.[49] It is unknown if this cycle occurs naturally without an external catalyst. Examples of darkened naaru are D’ore, M’uru, K’ure, and K’ara. Thrice, darkened naaru have also been shown to transform further into void gods; though in all known occasions this was only when their light was forcibly drained by an outside party, so it does not seem to be a natural phenomenon and is normally extremely rare. The ethereal Locus-Walker noted that the few cases of naaru falling into Void he knew of had occurred when mortals were involved, which he thought carried fascinating implications.[50]
I kinda understand it, but the way some posters wants them to with tat’s is to be kinda like walking light-bulbs with them. I can get behind non-glowing symbolic or religious tats, but it bothers me with peple requesting light tats acting like they’re golden eyes. I can do magic empowerments runes, maybe magic circles, but anything but that is awkward. I would imagine rommath designing something like that but I’d also imagine he’d put some arcane there too.