Compound growth appears when multiple creators reinforce the same tag corridor over consecutive windows.

It is supported by repeat post evidence and strong adjacency to related tags.

This pattern usually survives side-by-side tag comparisons.

Isolated spikes look large in one row but collapse when you inspect related tags and creator distribution.

Without adjacency support, the spike rarely converts into stable corridor strength.

Tag compare pages help detect this quickly.

Check tag ranking position, then open segment context, then verify two creators and two posts attached to that tag.

If all layers align, the tag deserves expanded link coverage.

If not, keep it as secondary context only.