They would only rank the search results through an algorithm that focussed on popularity and content only, using fancy maths. Because this auxiliary content is no longer owned by you or your project, platforms hosting this content can decide to ban or limit your account. The content property contains the Object's content — by default this is HTML encoded as JSON. The last handler for the inbox that I added is for the Create Activity, so that I can also capture Fediverse replies to each post. Terrence Eden has created an ActivityPub Server in a single page — he insists that this is not for production use.