The end goal of a social media platform is for users to use your platform. You want them engaging with content and ads. Rate limits are actually quite sensible if you want to prevent bots or data scraping, but the Twitter is being far too restrictive.
Lots of people are claiming to get rate limited after a few minutes of normal scrolling. Which makes me think these limits include replies as well. Realistically you’re not scrolling through, and Twitter isn’t loading, 600 posts for a least a couple hours. Even then, do you not want people using your platform?