So I tried SendinBlue. They made me confirm my email, my phone, my signup pages etc.
Then I sent out a campaign, and they sent an email saying my statistics were too low, and accused me of buying my list. This was after I had shown them my signup page.
And then they kindly gave me an option: They would allow me to use their system if I upgraded to a much more expensive tier.
Man, I feel insulted. First you accuse me of being a spammer, then you want me to give you more money?
I just realised something. The reason Mailchimp and companies like Sendiblue are cheap because no one would pay to be treated like that. (Except Mailchimp isn't even cheap when you move to their paid tiers).
Im sticking to Aweber for now. Evidently, treating your customers with respect is a rare thing nowadays, something not covered in all those growth hacking manuals.