dcortez

The requirements of a "good site" twenty years ago, versus one today, are very different.

In the old days of keyword stuffing, explicit term reinforcement, and obsessive linking topologies - which actually worked - search engines did not have the high (AI) level of content/structure analysis they do now.

A "good site" design today presumes:

• Proper use of meta tags (TITLE, H1, H2).
  
• Clear page dominant subject/context, appropriate explicit terms rippling from top tags down (but not repeated ad nauseum, neurotically ordered, nor clustered with every permutation/combination of a key phrase).
  
• Proof of interest from outside the site, authoritative value (backlinks, visitation behaviour (time spent on page, returns to page, bookmarking of page, following internal links on page, reposting/linking to page)).
  
• Technical compatibility (mobile and smaller screen friendliness).
  
• Absence of nefarious history or practices (black hat tricks, acquired domains with "ghosts in the closet", violating basic design rules). Sandboxing sucks.

All of the aforementioned, and more, constitute (necessary) "good site" design, which is also "good SEO".

In the non-adult world, getting collegial backlinks and authentic meaningful (substantive original text with reasonable linking), is much easier than in adult.

That's not to say that a porn site won't promise, or even appear, to provide a decent backlink, but trust levels in this world, on a high volume level, are disappointing. There are some really good players in this biz, but they are a rarity.

Site scrapers and brute forcers have choked out a significant portion of daily web traffic.

All that to say, rather than "SEO", "SEC" (search engine compatibility) which embodies basic SEO, is required for any page intended to be practically seen by others through various searches.