Unlike other tech billionaires in Silicon Valley, John Collison is rarely, if ever, opinionated or dogmatic in his social media postings. When the Stripe co-founder posts on X, his main platform of choice, it’s often to give positive updates from the payments giant or to comment on novel developments with other tech-savvy companies.  The only time the Limerick native ever really gets particularly personal is when it comes to planes and his love for all things aviation – he has his own pilot licence and flew across the Atlantic in 2017 at the age of just 27. In August, for…