I totally see your point, and yes the risk or "temptation" to accidentally fall down a shitcoin rabbit hole is something we should be mindful of but it shouldn't stifle progress.
You can make an obtuse argument that zapping over nostr is a third layer of shitcoining and not truly "Bitcoin"
I think if badges can serve some kind of legitimate utility beyond a digital beanie baby it is at least worth the consideration and experimentation, keeping in mind nostr is actually a protocol completely independent of Bitcoin. It's not even a blockchain. I think we are going to see a lot of unique ways to monotize things over nostr likely many of which haven't even been considered yet.
I am good with keeping it cute. I am not advocating badges being anything more than a sticker.
I am just wondering what the possibilities are, and if it is possible someone is probably going to try it whether we like it or not.