I’ll just throw this out there.
You might be saying “I’m comfortable with a level of 10% of toxic posts. Humanity is what it is and we’ll never solve everything, so I’m frustrated that a really great place is labeling itself as toxic.”
The problem with percentages is this, when you have huge volumes of data, even small percentages still mean really large numbers:
According to http://data.stackexchange.com/, there are roughly 106,000,000 posts/comments/answers. According to your 5% percentage, you’re asking for 5,300,000 individual toxic interactions. 5 million.
It’s unfortunate that some have called it a toxic wasteland, because yeah — it’s not, but I’m glad Stack Overflow has decided that even 5 % is too many.