Which makes sense. Image serving and threaded text serving probably shouldn't run in the same service. They have completely different storage and caching requirements. Also, they have rather different legal risks for server operators; and thus different moderation requirements.

For example, there are images that it's illegal to possess in the US or Western Europe (CSAM) but there's not a lot of text that's illegal to possess — national security secrets / classified information, yes, but that hasn't been a problem here.