Your last post
https://news.ycombinator.com/item?id=46270436 is not flagged. It's just that nobody upvoted it. It happens sometimes, for good and bad projects. It's hard to know the reason, the hivemind is mysterious...
Some feedback, more mean than usual, but I hope it helps:
When I arrive to ypur site, I get a lot of text in Korean and no explanation. Add some explanation and add an option to filter only post in English [or perhaps 1) Everything 2) English 3) Korean 4) Others.] It's very difficult to get traction here if the site is not in English (or at least is easy to switch.). [Hi from Argentina! Remember to add Spanish if you get enough users from here.]
Is it possible to create a new post? Did I create a new one https://rankiwiki.com/archives/6109 ? Did I create a new one! I didn't want to create one. Luckily it wrote something silly and not mean. Anyway, why does it have no options? Do you have some filter or moderation?
Can I upvote without login in? Is it possible to make some anonymous pools? (yes, they will be full of multiple votes and other nasty things, but it's easy to get anonymous users, at least block double votes using cookies, that is easy to bypass for advanced users.)
Why I can't see the comments?
In your last post you say "Designed for small groups where the ranking is a starting point for discussion, not a final verdict.". How is that implemented in the site? I guess online polls are not binding. Are some polls closed to a few "friends" accounts?
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My recommendation is to get a friend or something similar, and ask them to use the site without a detailed explanation. Something like "Just create/vote a pool about fruits."
You sit back like 1 meter behind your friend, shut up and cross your hands on your back. Zero helping. Watch how they interact with the site and where they get stuck. After some time give help, so your friend doesn't get angry. Thanks your friend, and go to fix where they get stuck.
Now find another friend ... fix where they get stuck.
Now find another friend ... fix where they get stuck.