Why does it help to know WordPress, HTML, CSS, something PHP / JS in SEO?
I know some of the above, and they’re really helpful in understanding a website, from an SEO perspective.
SEO is complex, there are lots to know, from content writing, networking (as a social form, not computer networks), Analytics, Ads, email marketing, social media marketing, affiliate marketing.
Still, my bet on technical skills helps me with … well – technical SEO.