[Aspiring] rationalists should win [at life, their goals, etc]. You know a rationalist because because they're sitting atop a pile of utility. – Rationality is systematized winning

"because because" should probably be "because"

We, the site moderators, don't take for granted that what makes our community special won't stay that way without intentional effort.

"won't stay that way" should probably be "would stay that way"