How would an optional, official parser be toxic?

[jameseoakes]

Why? If you're joining somebody else's party and you don't meet their expectations (and we know there are varied expectations, like being a Lala, a SAM, etc.), they have the right to kick you out of their group. If you join their party, and you are holding them back or causing the fight to go on longer than necessary, then they have a right to kick you. That's not toxicity. You just don't meet their expectations.

I'll consider FFlogs toxic until it becomes opt in rather than opt out. You've no evidence they are holding you back you've just looked at website they probably don't know exists or don't want to use.