What X's feed code rewards, in plain English. Updated when the code changes.
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1
Replies stay in the thread.
Strangers only see your own posts.
2
Small accounts get a boost.
Under 50K followers, one new post can get lifted in its first 2 hours.
3
Copy-paste replies get flagged.
Same text again and again counts as spam.
4
Posts last 48 hours.
For You drops anything older than 2 days.
Numbers are the defaults in X's public code (xai-org/x-algorithm on GitHub). X can run different values live.