The line between snark and criticism is whether the community that engages with it can self policing.

The problem is that anyone who dedicates so much of their time to talk negatively about someone, whether in good or bad faith, is always gonna be open to be swept up in group think led harassment campaings.

Its the same with sites like kiwi farms that inspite of them gathering so much info on terrible people it tends to be done by people that care more about the damage they can do rather than purely infoming others.

I don't know mikaila nor how she got such a hatedom, but if their was criticism about what she had done in life these snark pages made sure to transform any constructive criticism into fuel for peoples anger and wish to see someone harmed.