The whole point of the article is that *on large platforms* it is impossible to have policies on moderation, etc. that people agree on. Not small, interest-specific, geographically and linguistically focussed niche platforms.
The example is further perfectly illustrated by users here dropping their confident, just-so how-tos that would accomplish difficult tasks like moderation easily, and other users disagreeing with their equally confident, personally experienced difficulties in executing such just-so plans.
If you can define the question so narrowly as to make the answers obvious, you're not talking about the same problem anymore.