HeresMyAccount: Well I don't need to worry about data loss because I'll keep backups on thumb drives. The reason I want this is not for data backup but rather just for file sharing and I don't know of any other way to do it.
And I'm not sure that I like all this "cloud" talk because it seems to all involve synchronization.
What I really need is perhaps something similar to Hotline but that doesn't store data on my hard drive - something remote, basically like an FTP site that I can just get a chunk of space, log in and upload/download files. I wouldn't think that would be so insanely hard to find.
And once again, it must be FREE, not 1 dollar/pound/peso/etc. per year, but FREE.
There is a saying that goes something like "when you get something for free, you are not the customer, but the product being sold". As you seem to be fairly concerned about privacy, that is something to think about.
Companies generally don't offer services for free if they don't expect to get something back for their costs of running said service. And if they do, they generally don't last very long.
Dropbox' free accounts are basically advertising - this is how awesome and easy our service is, wouldn't you want more sharing options and more than 2GB of space?
Google gets most of its income from other companies paying them to show ads, and they get more money by convincing said companies that the people are (mostly) shown ads that are related to their interests, and that they as such are more likely to click on said ads and follow through with a purchase. So they collect data about the user whenever the user uses their services, and they make the services free in order to entice people to use them.
All of them advertise synchronisation because that's a service that people generally want, but I can almost assure you that it is never necessary to use that function, and not even something that is enabled by default (you would need to install the service's application in order to sync, the browser can't just read the files on your computer without your permission, and you can almost? always use the service directly through the browser).