If you don't want to be banned, you're welcome to email email@example.com and give us reason to believe that you won't do that in the future. That means: (1) not using HN primarily for promotion, but participating sincerely in the community; (2) not using multiple accounts to promote your site; (3) not systematically deleting promotional articles after you've posted them; (4) being up-front about your association with your site instead of obscuring it.
It's entirely P2P, so no 3rd party hosting of your files, no trusting someone's crypto/update schemes, or having to set up your own servers (although you still can easily add it to a VPS if you want offsite). There's also a nice mobile app:
You can also securely share directories with another person who uses Syncthing, I've found autosync directories are easier than using something like Airdrop for sharing photos with family.
Has a 5GB free tier, higher tiers cheaper than dropbox.
Based in Canada if that matters.
Or Syncthing as others have pointed out.
I'm still thinking which is best. They're slightly different use cases. But generally, I'd only really trust it if there's open source, otherwise there's lock-in.
pCloud's software is solid. I battle tested a number of other cloud services before selecting them. Their implementation is excellent - with virtually every other provider I found missing features or easily discovered bugs when putting them through the ringer in terms of testing.
DDG uses bing under the hood. StartPage proxies requests to Google. I've just personally found the latter to give better consistent results, particularly with my searches for technical/programming issues.