Unfortunately we can't police the selling of legal items. Yes we could put a warning but we would have to put warnings about many things; cars, bikes, meeting buyers/sellers, how to make transactions, food, drink etc. but it would take away from the simplicity of the forum and I'm not sure of how much value a warning about car seats appearing on all adverts would add.
By all means feel free to drop a note on adverts yourself but at the moment it's not something we can do.
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