Facebook - why do you talk with someone on his wall, instead of over PM?

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<p>It’s not criticism - it’s curiosity. I actually welcome the exchange people have with each other on each other’s walls - after all - it’s a welcome source of information</p>

<p>This was also why I didn’t deactivate my facebook when I wanted to - because it effectively meant that fewer people would be inclined to talk to me.</p>