I was with you until you pinned the problems on anonymity. Correlation does not imply causation. In this particular case there are (IMO) many counterexamples re

I was with you until you pinned the problems on anonymity. Correlation does not imply causation. In this particular case there are (IMO) many counterexamples regarding anonymity, including HN in particular. A different comment here points out the (effectively unquantifiable) risk that more or less indelible comments can pose in the future if they can be trivially linked back to a permanent identity. Interestingly, your explanation in terms of equity actually holds up without considering anonymity. If you instead frame it in terms of purpose for visiting the site it makes sense that Twitter would have a disproportionate number of users who exhibited little concern for building equity. This is also consistent with the toxic behavior that often occurs on Facebook, where real names and interacting with people local to your area are by far the norm.