I never really thought about it beyond the obvious loot box gambling addiction thing, but after I saw somebody talking about how daily quests in games like WoW do the exact same thing as daily login bonuses and keep you logging in every day to create a habit that'll keep you logging in whether you still enjoy the game or not, and how battlepasses and rotating cosmetic stores are designed to prey upon FOMO and people with poor impulse control, I can't stop seeing how the industry runs on exploiting vulnerable people at every turn.