Here is a Facebook way to piss off your friends and colleagues

[SteveinMN]

Facebook makes accidentally pushing one key into a life altering choice.

I think that depends on what you're sharing -- and the way you share that information and who you share it with can make a huge difference, too. I really don't care if the entire world can find out on Facebook that I "Like" my local Ace Hardware store. Maybe I wouldn't stand in front of the store, offering testimonials to passersby, but about the only harm I can see coming from the world knowing that is from a family member that works at True Value or Hardware Hank. And, if that were the case, I would use some discretion before clicking the Like button. On the other hand, if I chose to reveal about myself or someone else, say, a "non-traditional gender preference", yeah, that could be life-altering. But the level of alteration wouldn't differ all that much whether I told someone on Facebook or whispered it to a friend I thought I could trust.

I'm not trying to defend Facebook unduly. In some thread elsewhere on this site, people are discussing "evil" companies; for me, Facebook's treatment of personal privacy makes it somewhat evil. But people can overshare in many different venues and with no technology other than a shared language, an educated tongue, and a willing ear. It is the information and what the recipient does with it that can be life-altering, not the vector.

[ToomuchStuff]

You're right, that would be annoying.

Random posts on one of my friend's "Wall" appear in my email box. Not all of her posts, but some of them. I don't know why. It's messed up.

I hope this is not what I just received (similar). I am NOT on any of those social "networking" sites, for a few reasons (can't go into all of them). I know they have had issues before, where they change peoples preferences, when they do something new (it resets to the default allow).
But I received what looks like an ad (third party) asking if a person I know, can ad me as a friend on AOL (which I am not a part of). I didn't even know they have a social networking section (or care). Looks like it was mailed through their mailbox, IMHO, without them knowing.

[creaker]

I try to keep in mind that we're on Facebook to chat and share photos and events - while Facebook is there solely to make money. I'm not going to begrudge them trying to do what they are there for while they are giving me something free.