I think it’s different when it’s shown to the author, not the reader. It’s basically a word count feature, which has been useful since forever. Except it doesn’t translate into a unit that really means much for this context.

Yes yes yes, it won’t be one size fits all and all those uninteresting “but what if…” points.

What we want is to cue the slop generator just what they’re producing for their coworker or whoever.

I hate getting huge pages of careless slop that the unthinking author probably imagined would look impressive.

Maybe only show it as a result of the user pressing the “generate slop” button. Otherwise it’s not needed for normal, human emails.