From the archive. First published in February 2017. Rewritten for clarity, with a note on what happened afterwards.
A year after reactions launched, Facebook confirmed something page owners had suspected: a reaction is a stronger signal than a plain like. The company said that leaving a reaction indicated more strongly that someone wanted to see that type of post than a like did.
What is actually known today
This is an area where confident advice vastly outruns the evidence, so here is the honest division.
Confirmed by Meta: comments, shares and replies count as meaningful interactions and feed into ranking. Comment count and average comment length are both signals. For Reels, the predicted actions include tapping to full screen, watch through completion and sharing to messaging apps.
Never published by Meta: the relative weights. There is no source for a share being worth ten likes, or five, or any specific number. Those ratios circulate endlessly and have no basis anyone can point to.
What you can infer without inventing numbers
Comments and shares are far scarcer than reactions at every page size. On a large page, a status post might see roughly 78 likes against 17 comments and 5 shares. Rarer actions carry more information about genuine interest, which makes them more useful to a ranking system. That is an inference from scarcity, not a measured weight, and it should be presented as such.
What to do with this
- Write things people respond to rather than react to. A question with a real answer beats a prompt designed to harvest clicks on an emoji.
- Reply to comments. Past interaction with the poster is a confirmed ranking signal for connected content.
- Do not use engagement bait to manufacture reactions. Meta classifies it and applies page level demotions for repeat use, which costs more than the signal is worth.
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