[mundanevoice]

Indeed. Anything that has so much magic in it is bound to bite you in the a. There will be a time when there is so much code and magic that no one really understands the system well.

Twitter too was on Rails in the initial days which helped it took off, and then realised they need to move to JVM(Scala) to scaled and they have been performing brilliantly since then.

Now, that MS has bought them, why don't they use the brilliant tech MS has (.NET, .NET Core) and be more reliable?