I personally appeal to authority all the time when the person is the domain expert, like sjors on gui, gloria on mempool, sipa on basically everything. They just tend to have the most comprehensive view on a specific subsystem. Why would i consult some random person on twitter when they have no idea how these systems work

Incentives also play a role

Logical fallacies are indicators of poor reasoning or that the argument structure is not sound, but don't indicate that the conclusion is false.