How did we verify back then? It took time. A got so much hate, incredulity, and derision right away, but over time the coincidences and deltas were impossible to wave away. Anons kept making Q jump through hoops to prove legitimacy until it was crystal clear. I don’t even remember when trip codes came into play because proof was proof 10x over. Trip code wasn’t to prove Q, but to keep others from masquerading as Q and secure the comms line before the deep drops started.