Allowing them here would likely have a negative snowball effect.
- people who think solutions imply most often technical ideas
- people who are educated enough to understand HN
- people who talk english
So you don't see much of the rest of the world here... For example, there's not much on political strategies...
HN is great for tech, it's good to passable for tech-adjacent things (science*, math**) and usually really bad for anything far removed from tech (politics, humanities, philosophy, ...). Which should not be surprising, there is no a priori reason to believe that people experienced with technology should have interesting things to say about other topics.
(*) This excludes heavily politicised science topics.
(**) Though I have yet to see a math submission with more than a handful of comments without somebody complaining (and being upvoted!) about "math is too complicated" or "why don't they just use variables with more than one letter?".