Well.

Creating front ends that integrate different AI APIs is kind of over saturated, that's probably why you're not getting much attention. It's also somewhat hard to understand what's the value proposition of the website, you should focus on putting as much of that kind of information in everyone's face in the landing page, otherwise they'll just bounce. Take everything from your "Learn more" page and put it in your landing page. Simplify, condense and systematize the information in a way that makes it digestible and instantly obvious. Also, I should note your comment is kind of off-topic, have you thought about creating a Ask HN talking about your issue? It's very possible other HNers could help you get your website and product more interesting. I would also recommend not being bitter about it, Hacker News is all about Silicon Valley and startups, the main rule for these is that 9 times out…

If you listen to the people who have done this before (e.g. read/listen to indie hackers), Reddit/HN is very hit/miss. Only thing seems to consistently work is Twitter - and then you should REALLY building public if you have no audience so that you can build one. Have you tried this? If not, and you've been building stealth mode, you've missed out on an opportunity but you can still start now. You are figuring out so much stuff - make a Twitter post every day about what new problem you solved and you will quickly find a following as you establish authority in this new field, as so many people are learning from each other about this stuff.

It's not helping that you are constantly hijacking threads which are really only tangentially related to promote your app. As far as the website premise itself, I feel like this might've been useful 20 years ago when it was more popular to write static vanilla HTML with jquery sprinkled in. These days, if a person wants a relatively no code solution they're gonna go for WordPress or square space, otherwise they're probably going to design something using a framework such as react svelt or vue.