What does NsfwBannerImage mean on X?

Open X’s Under the Hood report while logged in. There is no menu link, so use the direct link. It lists every label on your posts and account last month, with a count. How to read it: X Under the Hood report explained.

Got another label in your report? Look it up here.

• SpamHighRecallYour whole account looks spammy to X’s systems, so your posts drop out of For You, even for your followers. They still see you in Following. This is the one that stalls growth.
• DoNotAmplifyX’s systems think the account may break its rules, so its posts are not recommended until a review finishes.
• AbusiveHighRecallThe account behaves like a bot to X’s systems. Posts aren’t recommended, and X asks you to pass a security check.
• ImpersonationHighPrecisionX thinks the account may be pretending to be someone else.

What does NsfwBannerImage mean on X?

Your header image looks like adult content to X’s systems, and that limits every post. X’s own description: “Account detected by automated systems as one that may post content subject to X’s Adult Content policy.” Effect: “The account’s posts are hidden from recommendations to non-followers.”

How do I fix NsfwBannerImage?

Change your header image.

How do I know if I have NsfwBannerImage?

Open X’s Under the Hood report at x.com/i/jf/under_the_hood while logged in. It lists every label on your posts and account last month. You need an account at least one year old with 10 or more posts in the prior month.