I think "want companies to freely use" and "avoid AWS-like predator" rules are mutually incompatible. Those licenses don't just prevent "AWS-like predator", they prevent anyone else from selling software services.
So from consumer point of view, they would avoid CC/BUSL/etc.. SaaS because it has a severe lock-in issue - there is a single supplier (you) and if you suddenly decide to increase your prices 10x, they have to pay anyway (or start hiring devops people to maintain private instance). Unless the product is much better than open-source alternatives, it's easier to just go to real open-source software, so that if one SaaS provider goes bad, you can switch to a different one.
And from the developer/contributor point of view, they would avoid CC/BUSL/etc.. software because contributing there is like contributing to commercial software - you cannot benefit from your own efforts. For example back in the college, my friend paid me to develop interactive website for their "tutor studio" (a dozen of their friends). Good thing all software I used was open source.. had I used any Common Clause software, I would not be able to receive money for it.
(Additionally, a lot of companies would not mind selling themselves to AWS or Microsoft for a ton of money. And incorporating a product with anti-AWS provision will make this harder.)
So I agree with others: be fair, and openly state from day 1 that your product is a commercial one, with source-available license. There are tons of commercial products on HN and there is no hate or disdain if they don't call themselves "open source"