I like my feed to not be flooded with racist/sexist replies. Mastodon has been a huge step in the right direction in this regard. "Free speech" doesn't mean "no moderation allowed".
Your "feed" (at least in the context of Facebook's/Twitter's) is comprised of people/groups that you follow. If your feed is garbage, then that means you follow people/groups that post garbage. Mastodon will be a more amplified version of that.
All posts on twitter are public, which means anyone is susceptible to abuse from any other user, and twitter does next to nothing about it. This isn't the case on the fediverse.
