Surprised how sceptical all the comments here are. Dick or not the guy has a talent for building companies
Particularly interesting argument they’re making too, that Twitter is a bunch of write-only code, unreadable by any other engineers.
It's very unlikely that an outsider could be shown a random diff on a random component in a Twitter-sized architecture & even know what it's doing or why, let alone make a reasonable judgement on whether it's a good idea or the best way.