As for the encrypted concerns. I have been using GDrive, Dropbox, Amazon, etc for other locations to "share" files with friends when my main file server is down. I simply just post them up with a simple password, 15GB ISOs stored in a ZIP, whatever... and never had any issues. I actually just logged into one of my GDrive accounts and found a file I have had there for about 8 months, and no one has bothered.
Basically I think that if you have anything unencrypted up there, "they" have algorithms that look for program hacks to copyrighted material... so that they can't be in trouble for having it on their servers. But if it's got something that people can't easily look into, no one is going to bother with it. I've been doing this for the last 5-6 years and never had an issue.