I can believe that a dozen talented engineers could in principle suffice for Twitter.

But who believes those 12 engineers still work there? The author of this specific item is in fact not there any more.

And a lot of other people are needed to bring in revenue, don't you think? Nobody is paying for a beautiful caching system.

It's like if I doubled my weight in the last ten years. Half of me is bloat, and yet, there is no possibility bisection will improve my health.