Like with club forums (and similar to the option on Facebook), it could be nifty to have an option to pin posts onto the top of your wall so it's the first/topmost thing users see when they enter your page.
For example, this would be fantastically helpful if you had posted a week prior notifying people of an absence, but there was activity on your wall since. The post wouldn't get lost and would immediately catch the attention of whoever comes onto your wall (perhaps they came to see where you've been, but they couldn't tell since the absence notice got lost without pinning!). If there are motivational or kind posts you want to pin so users can see and have their hearts warmed, another form of important notice people should read, or literally anything else, then the option to pin would be wonderful!
As it's possible in forums, it doesn't seem too far-fetched that it could be done for personal walls.
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