Entrance animation on everything
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Rule · bucket: judgment · severity: note · detector: none · since: v0.1.0
Section: Things to avoid
Group: Motion

Forbidden:
  Every section fading and rising on scroll

Instead:
  Motion earns its place by explaining a change of state or spatial relationship. Decoration on a page the user will visit twice a day becomes friction.

**"Once" means once per visitor, not once per page load.** A welcome or hero animation that replays on every arrival stops being an introduction after the first one and becomes a toll. Persist the fact that it has played and skip it thereafter. Where one does run, give it a visible one-click skip — a user who wants the content now must not have to wait out a brand moment to reach it.