I recently noticed this feature too. Is it because we're at a higher level now? Possibly because since we're at this higher level, we may be given a little more control over everyone's posts - including ourt own? :-)

I really don't think it makes a huge difference though... most of us are just as likely to promote someone else's post as well as our own. At this point, I hope that we promote posts based on perceived merit (I admit this can be subjective).

Mick