"Relevant to the people on HN" is very different from "relevant to HN". Many, many, many things fall into the first category. That makes it effectively useles

"Relevant to the people on HN" is very different from "relevant to HN". Many, many, many things fall into the first category. That makes it effectively useless as a filter. Something being important/interesting for Americans is different than something being important/interesting for hackers.