Scalzi is a major asshole and one of the prime movers behind the destruction of the SFWA by lowering the standards for membership so no-talent Social Justice Warriors with no legitimate publishing credentials could join, take over the organization, impose their Stalinist limits on free speech, and start awarding Nebula Awards based on the writers' politics, race, ethnicity, sexual orientation and gender identity rather than any type storytelling skill or literary merit.
He is an execrable human being and a shitty writer of highly derivative pulp crap. The fact that he engages online with Flynt/Wu as if the transgender con man was a legitimate congressional candidate, a genuine engineer, and an actual woman who has suffered because of sexism indicates that Scalzi is either mildly exceptional or will go to laughable extremes to maintain his bona fides as a really woke, self-loathing, straight white man.