Only if you are granted special powers.
Really special people can make other people's posts go *poof* into the ether. Just wait 'til I've earned that power.
I still have a couple of levels of difficult testing to get through before I can do that, though.

He's dead, Jim.
When you get to "Clear" or "Delta" or whatever level it is, will you ping me and show me the empty spaces where the posts were?
You understand, there can't be *anything* at all where the post was; no note, no post #, nuttin', nada. Just a ping and I'll be in appropriate awe.