Glad to hear it! Knowledge management is definitely a crowded space – probably because it's something that is almost universally useful to humanity if done "correctly".
Being around HN for a while has definitely influenced how I think about the product and what I want to build. For a while I was wanting to build Supernotes as a federated service (and at some level I still want to do that), but for now the focus is mostly on making the most seamless UX.