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Ranking an inside page higher could be a sign of a page-specific or term-specific action. This may tie-in to anchor text over-optimization, since a lot of those links may be pointed at the home-page. I find social comparison of link profiles, so to speak, is rarely useful. We all overestimate the mischief or our competitors and underestimate our own. At the end of the day, though, your link profile is the only one you can control. That said, obviously, adult site link-building is very competitive, very difficult, and often spammy, and the reality of any given industry doesn't always match "best" practices. Unfortunately, I don't have much experience with how to build links in your industry. You've got the advantage of some novelty and a growing interest in VR, but I'm not sure which sources talk about those developments. In many ways, it seems more like a PR challenge.