Does headless integration scale to $50M GMV?

Yes. WordPress is rarely the bottleneck at that scale; the SaaS MLM platform behind it handles the load. We've watched the bridge pattern work cleanly through $50M+ GMV with no architectural changes, just bigger hosting on the WordPress side (managed at Kinsta, WP Engine, or Pressable class) and structured observability on both sides of the bridge. Above $50M, the question becomes whether WordPress is still the right marketing surface, but that's a marketing decision rather than a platform decision.