You can scrape twitter pretty easily yourself with an account (lots of free code on github) but that's the thing - you need an account which is legally complicated but for your own personal use you can just create a dummy account and you'll never be blocked.

Don't they require a phone number? Even if they don't, they probably require email. I don't really want to give them my main email and even less - phone number. So, buying an account seems like less of a hassle, than figuring out where to get a temporary email.