Something broken, something missing, or a product you can't find? Email support@junasocial.com and a person will read it.
It's one person, so give it a day or two. Telling us which product, which screen and what you expected gets you a faster answer than "it's broken".
Every log, comment and profile has a report option behind the menu. You can block someone from their profile, and they won't see you or your shelf again.
If something needs attention faster than that (someone being harassed, or content that shouldn't be on Juna at all), email support@junasocial.com and say what and where.
Ask and it's gone: your shelf, your rankings, your comments and who you follow. Email the address above from the account you signed up with.
What Juna stores, and what it never does with it, is in the Privacy policy. The rules everyone agrees to are in the Terms & Community Guidelines.