So: what web search did you do recently, where (imagining average-dude-in-the-street looking over your shoulder) that person might utter a WTF or two? Multiple answers allowed!
Please keep in mind that HN users (on average) do not qualify as "average dude in the street". Whoever he/she/they may be. What may seem ordinary/known to many on HN, may not seem so to most other people. And the reverse may also be true: HN users could be less likely to keep tabs on say, the latest memes, TikTok videos or celebrity gossip.
Perhaps it's a good idea to leave names of software projects out? There's sooooo many, a significant fraction of those passing by on HN posts don't ring any bell for me.
Let's summarize it as "whatever might pique a random bystander's intellectual curiosity".