TLDR: share reposts from credible trusted authorities to interesting content from obscure sources, over the content direct link.
Provenance is a big deal in AI - injecting the origin and sources used within AI responses.
This helps trace the response to its source to help lawyers trace copyright violations by AI labs.
A useful side effect is that a consumer can also see where it got the information from.
However, the credibility of content for a consumer of the content is not just about its sources, since the sources themselves may require validation.
The other half of credibility comes from human validation.
All this goes to say: if you see a repost of something cool but from a relatively unknown source, and the repost is from a credible and reputed person, then share the repost instead of the inner post. This transfers your own trust to the consumer of the content.