I think it is a good idea. It is not easy to scroll back through an author's post. If they think it is worth a second look, (a first look for thousands of new users), then they should post it. The use of the steemitzombies tag would make it easier to find post that Authors were proud of.

I do not think any one would need to worry about steamcleaners, there are no rules on content other than NSFW indication. If it is not plagiarism, or copyright issues then should be no problems.