If this is a private or hybrid cloud, yes, I give it a certain amount of trust, but I also don't trust anything out on the Internet anyway. It also depends on what is is: vacation photos? recipes? yes. a new novel? a new non-fiction work? A complaint about why we should overthrow our government (hiya, DHS), no, of course not. Would I put out my biography? Probably not.
The "Golden Rule" is that, if you don't want people to see it, kepp it away from the Internet.
So how about the public clouds? This is the last time I'll say this (OK, maybe not): READ the PRIVACY Statement and the Terms of Service carefully. Will they guarantee your uploads and files are safe from anyone looking at them? Do they have machines or human beings reading them? Do they pass your information on to the government (like Tweets get sent to the Department of Homeland Security)? Do they say that you must have the full rights to your work with enough rights to give the cloud provider complete acces to your documents? Are you required to allow them to view, modify, abstract and even PUBLICLY DISPLAY your documents? Google says they need those rights to perform service for you. Do they really need that? Do you really want to give away those rights?
What about content? It's one thing to put your shopping list for your spose up there. It's another thing to put criminal records of celebrities on the service. It's also another thing if you are sharing personally identifiable information of a MEDICAL nature on the cloud. If the cloud provider can read all of your uploads, is that a HIPPA or HITECH violation? Those cost a lot of money. Remember, that many public clouds have been hacked. Google had their password software stolen. Dropbox was hacked and over 100 accounts had their data compromised.
So, my answer is that I would not use public clouds unless it is my data I don't care about (my blood sugar is generally in the range of 80-160 if you need to know) or maybe pictures of my cat.
Light bulbs you shouldn't buy
There are plenty of dimmable LED light bulbs, but make sure you don't buy the ones that flicker when you dial them down.