@superduper possibly being Rie is a common concept here - and one I subscribe to, simply because it'd be amazing - but I wonder about the idea that Reticule is not Ken, but instead Pippa herself.
What if this Reticule account is Pippa's attempt at trying to gaslight everyone into making her an appealing marriage prospect? This may sound far fetched, but Pippa is pretty damn autistic, so I could see it being something she'd think would be a Good Idea(tm).
Or maybe not, but it's sure funny to think about.