[timo614]

It appears to be just an issue related to the rollout of timeline and people freaking out.

I joined in 2004 and remember how people always just wrote on each others walls myself (if you were an early user you probably also remember that people would have full conversations back to back on each others walls as you couldn't leave comments on wall posts). It's probably just a matter of people not recalling this was how Facebook used to behave.