[abvdasker]

That really depends on the kind of writing. For things like journalism and technical writing there are rules that need to be followed and you're not allowed to color outside the lines very much. The really, really good writers learn to be creative within these more restrictive styles of writing. It's no coincidence that many great creative writers had copywriting jobs earlier in their careers.

I can imagine a tool like this making it much easier for journalists to follow a newspaper's style guide or something similar.

[squimmy]

You're right there.

My impression of this might have been different if the list of rules included CMOS instead of something that tells me not to use the term "jump the gun" because it's a cliche.