Sure, ideally we flag it as spam and then it goes away, but what should we do between the flagging and the "it goes away"?
The Meta.SE post on this says that in theory is better not to touch them, but some here feel differently, and they edit the post away, while mentioning the reason.
I see the reason, it often takes a long time here to delete spam and often is deleted through the low quality queue, meaning that is not flagged appropriately (and the system does not treat it as spam).
Should we agree one way or the other? Or should we leave everything as it is? with some users flagging and others also editing away?