10 Reasons To Delete Your Facebook Account
5. Even your private data is shared with applications. At this point, all your data is shared with applications that you install. Which means now you're not only trusting Facebook, but the application developers, too, many of whom are too small to worry much about keeping your data secure. And some of whom might be even more ethically challenged than Facebook. In practice, what this means is that all your data - all of it - must be effectively considered public, unless you simply never use any Facebook applications at all. Coupled with the OpenGraph API, you are no longer trusting Facebook, but the Facebook ecosystem.
4. Facebook is not technically competent enough to be trusted. Even if we weren't talking about ethical issues here, I can't trust Facebook's technical competence to make sure my data isn't hijacked. For example, their recent introduction of their "Like" button makes it rather easy for spammers to gain access to my feed and spam my social network. Or how about this gem for harvesting profile data? These are just the latest of a series of Keystone Kops mistakes, such as accidentally making users' profiles completely public, or the cross-site scripting hole that took them over two weeks to fix. They either don't care too much about your privacy or don't really have very good engineers, or perhaps both.
3. Facebook makes it incredibly difficult to truly delete your account. It's one thing to make data public or even mislead users about doing so; but where I really draw the line is that, once you decide you've had enough, it's pretty tricky to really delete your account. They make no promises about deleting your data and every application you've used may keep it as well. On top of that, account deletion is incredibly (and intentionally) confusing. When you go to your account settings, you're given an option to deactivate your account, which turns out not to be the same thing as deleting it. Deactivating means you can still be tagged in photos and be spammed by Facebook (you actually have to opt out of getting emails as part of the deactivation, an incredibly easy detail to overlook, since you think you're deleting your account). Finally, the moment you log back in, you're back like nothing ever happened! In fact, it's really not much different from not logging in for awhile. To actually delete your account, you have to find a link buried in the on-line help (by "buried" I mean it takes five clicks to get there). Or you can just click here. Basically, Facebook is trying to trick their users into allowing them to keep their data even after they've "deleted" their account.