Dan Taeyoung brought this up during a recent conversation, so credit to him for the idea.
Adding here as an interesting example:
A bot assigned to look a specific channel, say
/are-na-developer-feature-requests, grabs the metadata from each block and counts the # of unique user
A table of block titles is then displayed by descending
Ideally the result would be embeddable to create a block voting system passively integrated into the Are.na UI.