Erm... does anyone think that self-certification is a bit odd?
After just trying it (it works), I wondered why it's actually there.... it won't affect the overall output of global certification and just seems to be there to allow someone to give themselves a pat on the back... (or a hugh ego boost... depending on how much you lie :)
...and being able to edit your diary entries is a bit strange too... shouldn't things like this be locked in time (since they are dated)?