This post is a scenario/use case for a new feature. Please add your feeback 
Currently, the spam moderators receive an email each time someone makes a first edit on an MDN article. I’ve noticed some of those first edits are almost empty edits and there is no way to check if the following edits are “ham”.
By being able to have a “greylist” class of users and receiving an email each time one of these users edit a page, one could possibly detect some spammers later on.
Is this a good/bad/meh idea?