Just a quick question: Does "ignore enemy resistances" make elemental exposure pointless?

Ignore takes priority unless it specifically states ignores non-negative res or something like that (I think invoker has that).

So if a monster has positive response, it's treated as 0, if it's negative the negative value stays. If you're just using fire pen, then it's just 0 even if you have other curses or exposure.

I'm 99% sure it just ignores the res. So it treats it as 0 regardless of curse, exposure, anything.

Things like the Invoker ascendancy Sunder my Enemies... specifically say ignore non-negative.

So i just switched from choire to +3 on a spark coc comet character... didnt change supports yet.

Do i move rakiatas to spark and slot in atalui on comet instead?

I had it like this before cuz enemy lightning res is 0 but no source for cold pen. Look below link

https://poe.ninja/poe2/builds/vaal/character/ziqel1-1789/Ziqelchaos?i=0&search=name%3DZiqe

Ignore is both ways, if you are using any support gem or unique or ability that ignores Ele resist no need to stack on pen or exposure because it's just a flat 0, if you are maximizing on this just stack your elemental damage instead since you are already ignoring their resists might as well increase the damage.

The tooltip for "ignore" essentially says it treats monster resist as if it's 0, no matter what it would be for any other reason. This means damage of that type can't benefit from curse and exposure. Of course, the other elements still exist and people are usually doing multiple damage types these days, if only from "extra" damage.

There's a cold notable on the tree that's "ignores non-negative while mob is frozen." Invoker has the same for critical hits. The way this should work is that if a mob has 30% resists after all exposure and curse effects, "ignore non-negative" will set it to zero (but in that case you didn't need exposure and curse). If the mob has -30% after exposure and curse, "ignore non-negative" does nothing. I can't say how it interacts with Rakiata's Flow because I've barely played with it. All my builds have found it straightforward to use curse and exposure.

It's not pointless. But if you're investing in sufficient penetration, then ignoring resistances probably doesn't add any value. The problem is that monsters have pretty variable resistances, plus the fact you can give them additional resistance through map mods - so it's contextual whether it's doing anything for you or not.