Feed & Attention
Reply to replies: the one signal worth 150 likes
X's published ranking code weights a reply the author engages with at +75 against +0.5 for a like. What that means, and the one habit it rewards.
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Every X strategy argument eventually reduces to one number from the platform's own published code: a reply that the author then engages with was weighted 75, and a like was weighted 0.5. That is 150 times more. If you optimise for anything else, you are optimising the cheapest signal on the platform.
The short answer
Conversation depth is the highest-weighted thing in the ranking file, and it is the one thing you cannot buy, schedule, or automate your way to. The habit that produces it is boring: be present after you post, and answer people.
The numbers, and what they imply
| Signal | Weight | Relative to a like |
|---|---|---|
| Reply engaged by author | +75 | 150x |
| Reply | +13.5 | 27x |
| Profile click + engagement | +12.0 | 24x |
| Conversation click + 2 minutes | +10.0 | 20x |
| Repost | +1.0 | 2x |
| Like | +0.5 | 1x |
| Video watched halfway | +0.005 | 0.01x |
These are the weights published in the 2023 ranking code. xAI's 2026 release replaces the model with a transformer but keeps the weighted-sum structure, so the ordering still holds. We break the full table down in X's ranking weights.
Why this is hard to fake
The +75 signal requires the *author* to engage with *your* reply. A pod can generate a reply, and a bot can generate a reply, but neither can make the original author care. That single fact is why the platform's own anti-pod work can target this so precisely — and why engagement services can produce the cheap signals and never the valuable one.
The asymmetry
Negative feedback is weighted −74 and a report −369. One mute erases 148 likes. Optimising for approval has a low ceiling and a hard floor.
The habit, in three parts
- Post when you can stay. If you publish and leave, you have paid the highest cost of the channel — your own writing time — and collected the lowest-value signal.
- Answer the first replies fast, within the hour. Ranking predicts both comments and long reads, so a live thread feeds two weighted signals at once.
- Ask something a specific person would answer. 'Thoughts?' invites agreement. A concrete question about their situation invites a reply.
What this means if you are reading, not posting
The same weights explain why your feed looks the way it does. A ranked feed is optimised to find posts you will reply to, because that is what it is rewarded for — not posts you asked to see. If your job is keeping up with specific people rather than being served conversation bait, that is a different problem, and it is the one a focused feed solves. For the practical comparison of the native alternatives, see see X posts without following.
Common questions
What is the highest-value action on X?
A reply that the post's author then engages with, weighted +75 in the published ranking code — 150 times a like (+0.5) and 27 times a plain reply (+13.5).
Do replies matter more than likes on X?
Substantially. A plain reply was weighted 13.5 against 0.5 for a like, and a reply the author engages with was weighted 75. Likes are the lowest-value positive signal in the file.
Can I automate replies to grow on X?
You can, and it targets the cheap signals. The +75 signal needs the original author to engage with your reply, which automation cannot cause. Automated engagement also carries platform risk.
When should I reply to comments on my own post?
Within the hour. Ranking predicts both comments and long reads, so a live exchange under a fresh post feeds two weighted signals at once.
Read the people, skip the bait
Surfolks collects public posts from the people you choose on X and LinkedIn, so your feed is your list rather than a conversation funnel.
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