<b>"Reply to every comment to boost the video."</b>

<b>"Reply to every comment to boost the video."</b>

This spread because engaged videos have lots of comment activity, so creators assume <i>replying</i> feeds the loop. Correlation isn't causation: the comments came because the video was good, not because you typed back.

The mechanism: TikTok weights <i>viewer</i> actions — comments left, shares, completion — far above creator activity. Your replies barely register as a distribution signal; they're a community tactic, not an algo one.

What's true: reply to spark <i>more viewer comments</i> (a pinned reply that asks a question works) — the second-order effect helps. The replies themselves don't. Optimize for the conversation, not for being busy in it.