Who will actually read your brief
On this marketplace the article is written automatically. In your own prompt mode, the text you type is the brief.
So write for a careful reader that follows instructions literally and has never seen your site. Say what you mean. Skip the adjectives, and never rely on it guessing the angle from a domain name.
If you upload your own finished article, the brief becomes your own checklist, and the same nine lines still catch most of the mistakes.
Three weak briefs, taken apart
The first says: "Write a blog post about SEO and link to my site." It has no reader, no angle and no anchor. You will get a generic article that could sit on any of 50,000+ hosts, and a sentence that reads like it.
The second is greedy. It packs in forty keywords and a demand for 2,000 words. The writer, human or automatic, tries to use them all, and the result reads as the kind of mass-produced page Google's March 2024 spam policies call scaled content abuse. Fewer instructions that are clear beat many that collide. Simple wins.
The third forgets line 7. It leaves the writer free to invent a statistic, and you then have your link next to a figure you cannot source. Price is not the cost here. Reputation is.
All three fixes cost the same: ten minutes at the keyboard before the order, rather than a long email after it. Budget for $1 to $500 per link only after you have the brief, because a $300 slot with a bad brief wastes more than a $5 slot with a good one.
A fourth failure is quieter: a brief that names the target URL but never says what is on it. The writer then guesses, and your anchor promises a pricing table that the page does not have.