Anyone from Twitter who can comment on the cultural/engineering ramifications of this? I would be tremendously interested to hear from former Ruby hackers who

Anyone from Twitter who can comment on the cultural/engineering ramifications of this? I would be tremendously interested to hear from former Ruby hackers who have been shifting (back?) to Java via the Netty tool mentioned in the OP. Definitely a different tack that we are used to hearing hear on HN . . .