Actually it is the exact application to develop with no code. It is a clone of an existing website, where there are already 100s other clones, so it will extremely likely amount to nothing and not surpass 10 users, meaning the performance impact will not impact anyone.
I feel like that's a bit harsh and you may be missing the point if all you see in this is another clone.
There's obviously been a lot of effort put into this, and there's so much to be learned from what's being presented both from the perspective of a seasoned developer and those who aren't. The discussion above and below your comment is proof of that.
It was completely my bad for not being prepared for a surge in traffic. Should be less slow now since I added a boost to the site. But, yeah, it's definitely not perfect I'll admit.
If you do try again, check it out on desktop not mobile, and let me know.
Maybe it could also be a result of a bunch of people using the test acct, so feel free to create your own test acct.
It was working rather well until the traffic surge from HN. Added a capacity boost to the site so it loads now, but you're right it's rather slow. So you may have a point.
As far as an experiment though, it's good to know what the current limitations of no-code are. This was never meant to be anything serious. Just a learning opportunity.