Would you be opposed to SE implementing a program to scan for addons/parsers?

[PikoAliapoh]

I don't really blame the players there as much as I blame SE and the devs for creating this issue... Chiding the player base at this point solves nothing, because they have already admitted that they can't really crack down on these things, at least not in a meaningful way.

If they can't crack down on them, maybe they could just remove ultimates from the game? That'd be another solution to this whole thing!

[Vahlnir]

If they can't crack down on them, maybe they could just remove ultimates from the game? That'd be another solution to this whole thing!

That would make an already bad situation worse. The solution would be to improve the game and lessen the desire for these things. Perhaps make some mechanics easier to read, though not any easier to execute, as an example. Players shouldn't feel the need to zoom out excessively just to see what in the world is going on. Ultimate might be the focus at the moment, but it also shines a light on a lot of other issues, too.

[Midareyukki]

That would make an already bad situation worse. The solution would be to improve the game and lessen the desire for these things. Perhaps make some mechanics easier to read, though not any easier to execute, as an example. Players shouldn't feel the need to zoom out excessively just to see what in the world is going on. Ultimate might be the focus at the moment, but it also shines a light on a lot of other issues, too.

So far this hasn't been a problem in any Ultimate I've seen, but when people are using third party tools to play your game because they can't see what the heck is going on, that's when you realize your design choices are not the best.

And to properly illustrate your point: I'm colourblind enough to not be able to spot some colour differences. I can do Kampeos Harma because of shapes rather than colours. When people who can easily see both still screw up the mechanic, it's a sign that figuring out a way to understand the mechanic isn't a problem. Executing it is xD

But there are fights without that sort of foresight. As well as gameplay elements unrelated to combat (I can't see the gathering nodes very well, they're yellow on yellow). I had people who cleared Ultimates get utterly stuck at Construct 8 and I have to be the one telling them where to go. Dyscalculia is an actual thing, turns out, and not something people throw into the air to bail out of math class.

So allowing people to identify mechanics shouldn't be a problem. Especially not when the game has markers for most stuff rather than merely relying on minute details like animation tells, buffs or glowing castbars. Those are things that require special attention from everyone. But when the indicator is meant to be clearly visible, that's a mechanic that shouldn't be hard to identify. The challenge is on the execution, no matter how "pfft, easy" we may think it is.
So when that part becomes a problem due to design, there's likely going to be a need for ways to resolve this. Sometimes, yes, through the use of QoL tools.
An Ultimate player with some form of disability or problem shouldn't be penalized for using third party tools to help them match the level of everyone else, even if they are strictly forbidden. Because if there's no viable alternative in the game, what, should they just be expected to not engage in the content overall? It's not exactly fair.

And before someone says "Yeah well life ain't fair :A", need I remind you we're discussing an online videogame with regular updates, and under the assumption that tools that help with these things exist as alternatives?

Those tools existing is problematic, especially since they open the door for others that enable cheating. And those who want to cheat will do so, regardless of circumstance. But when lacking the alternative, making mechanics who by design should be easy to identify a bit more obvious for them, will mean these tools will have their audience.

I'll just also add, because I know some people have comprehension issues, cheating is cheating. And that is the problem. I'm just pointing out that this solution could harm more than just cheaters. And that a more viable solution, as Vahlnir pointed out, lies in how the fights are designed.