[nitwit005]

This suggests improving the ratio, but honestly, if the rate is genuinely 99% good and 1% bad, then the truth may be that you're at a point where you won't notice improvements.

Say we make a huge effort and halve the rate of such harassment. That's a change from 99% good to 99.5% good. Will you notice the difference? Maybe, but it's likely you won't. You're still guaranteed to have bad experiences at regular intervals if you go to tech events.