I know that can be bothersome, but take a look at our latest HNQ. An answer that yesterday was at -2 without back up (and could be reviewed/deleted by the community) is now at +3, and will need a mod to undelete once the community finally finishes reviewing it :/
Being quick might not be fun for new users, but at least it sends a good message: 'We have guidelines here and you don't meet them'.
Being slow will lead to users saying 'but people upvoted it!' and we'll have to explain that this was an effect of HNQ, not of their post being good in any way :/