Which of the following should NOT be a primary concern when planning a dive?

When planning a dive, primary concerns must focus on safety and the overall environment in which the diving will take place. Social media updates are not related to dive safety or conditions and should not be prioritized when preparing for a dive. Concerns like weather conditions, air quality at the dive site, and depth limits directly affect a diver's safety and should be carefully considered beforehand. Weather conditions might influence visibility and sea conditions; air quality can indicate the presence of harmful pollutants; and understanding depth limits is crucial for avoiding decompression sickness. Therefore, it is vital to concentrate on factors that impact the dive experience and safety, rather than social media, which does not provide pertinent information about the dive environment.