User psychology plays a central role. Behavioral economics shows that sunk-cost and endowment effects increase engagement after even trivial initial investments. Interactive adult platforms exploit these tendencies through micro-commitments: small, immediate actions (spending a free credit to cast a vote) that build a sense of involvement. Social elements—leaderboards, public voting tallies, and streamer acknowledgment—amplify this effect by combining personal investment with social validation, making subsequent purchases emotionally salient.