xcancel.com lets you view posts and accounts from X without an X account. It's also useful for viewing content that might be blocked on X. Adding "cancel" to an X link redirects you to xcancel.com, letting you see the content without contributing to X's traffic or logging in
@amerpie with another perspective:
xcancel.com gives users on X reach to people without an X account. It's giving them no incentive to leave X. Adding "cancel" to an X link redirects you to xcancel.com, letting you see the content and sustaining the reason for people to post to X
