This would be a nice feature to have if I know that the uploader is trustworthy. Add a warning before download stating it is unapproved and say it may contain viruses, but still allow us to download if we tick a box or click another box stating we understand the danger. I would be happy simply letting my AV do the work to find viruses if i trust the uploader.
As an added bonus for you guys, you wont have to give as many infractions for people begging for approval.
Edit: Based off responses, the best idea would be to allow only regular, trusted users to be able to apply to have all their published hacks downloadable without approval. However, there should still be a warning that it may contain viruses.