~Originally posted by Chaser

Requested feature overview description.
Script enforced 4 tags minimum limit when uploading(client side, API level implementation could work but might break scripts).
Pre form submit, check if fields["tags"].search(/\s/g) >= 4, else error with "Please add at least 4 tags before uploading!".

Why would it be useful?
Prevents people from tagging badly with no/few tags.

What part(s) of the site page(s) are affected?
Posts/Uploading

I do think that a minimal would be quite nice to be honest. Of course, it may not stop someone throwing in 4 random garbage tags if they feel up to it still.
But those can of course be dealt with in the usual tagging abuse reports. I think this might be worth considering.