Just par for the course with tech. There are much more critical systems than twitter running all over the world that no one has updated or fixed in a long time.

Just par for the course with tech. There are much more critical systems than twitter running all over the world that no one has updated or fixed in a long time. I worked with big telco a while back. The software/hardware we maintained for the telco exchanges was used in pretty much every country. That "stack" was in development for 30+ years. Hundreds of companies and thousands of devs had contributed to it. Using as many languages and tools you can imagine. Many don't exist anymore. Large chunks of the source code and tooling to build/fix just got lost with with time, relocations, layoffs, mergers etc. And things would break all the time. All we did was cook up hacks and work arounds to keep things running. No real fixes or updates were possible.