voxpelli, 
I really wish Mastodon would adopt an aggregation approach rather than a repost approach when gathering data from across the web.
#Jaiku did this very well, as can be seen in eg. this screenshot from an old @TechCrunch article: https://techcrunch.com/2008/08/28/jaiku-uncaps-invites-migrates-to-google-infrastructure/
Jaiku also had (or at least planned to have) the option of picking and choosing which aggregated data one wants to follow.