Hey thanks for writing in, So regarding storage of stuff that you don't want public, I honestly would not bother with either IPFS or Arweave. Just do the regular internet for non-public content. The official Arweave foundation has a lot of projects, and one of them is encrypted emails for Arweave, but I don't think it's that great, because of the metadata issue and the future Quantum issue. Session messenger is really the same thing as that Arweave email, but with onion routing and not permanent. Arweave's ArDrive app does have an encryption option, and if you're doing smaller files then it's fine. But it's not like this is anything special, because you'd need their web app (their business) to be around to get the stuff. You could literally PGP it on your own and then put it on Arweave, but I can't think of a use-case for this. However, IPFS has serious flaws.. it lacks the CDN and the storage is disconnected from delivery. It also has elements of socialism, because it's forcing nodes to do torrent sharing without payment on the delivery, including the end user. The end user is being forced to torrent without pay.