How would an optional, official parser be toxic?

[HyoMinPark]

How do you know if it's your computer or the internet that is the problem? I always see myself dodging mechs but still get hit so there must be a delay and unsure if its my computer or the net.

Resource Monitor records your latency. When I see my latency spike suddenly to 300~400ms, that's my Internet. Not my computer. I can check my CPU and GPU temps anytime I want; they don't spike high even when I've been gaming all day and remain constant when the game is active. Sure it's hotter when I'm gaming compared to when my laptop is idle, but that's the case with any computer. The temps aren't critically high. It's easy to tell if you know where to look.

And this is why FFlogs is Toxic.

But joining parties for content that you cannot even perform averagely in, and just expecting people to be okay with it, isn't toxic?