New rules on my part for requests for peer review:
1. If you write to me on a Saturday or a Sunday it is an instant decline.
2. If you insist on having the review within 7 days, I will decline.
3. If you already set up an account for me (probably the umpteenth one) on your editorial software, it is an instant decline.
4. Springer, Elsevier, and predatory publishers should not even bother asking.
You want me to work for free for you, but you don't care about my weekends or my current workload and your focus is on making money, not publishing science? Respect your peer reviewers if you are not paying for their time!