@jwildeboer@wildeboer.net We used to do that on Twitter! A long time ago I wrote a thing cashed HashMoot that allowed you to tweet something (like a product name or service) along with a score ('marks out of ten', like 6/10) and the hashtag #moot, and they'd all be gathered into a database. You could search the database for a product, and it would average all the scores for that search.
It was neat. Nobody used it.
But every year we did repurpose it to score Eurovision entries. That was fun!