I believe they have also cited an advantage of using OCaml being the quality of applicants they were able to pool for hiring by virtue of mainly using a functional language and being able to draw from the enthusiastic and skilled community around it. It's weird, right? In some ways, this actually has nothing to do with OCaml itself or its merits, or even the functional paradigm. I hadn't heard your example before but that's also quite interesting. I wonder how much weight these kind of side-effects account for their success, and how much is actually due to the merits of the technology itself?