Big bang 3rd of december? Does this screenshot seem legit?

The first few days will be chaotic and probably even unplayable. I'll wait until everything calms down.

Definitely.

There's a high chance there will be major exploits, bugs, plenty of unscheduled maintenance, maybe even rollbacks. This means, at least to me, the official release date isn't until everything becomes stable and I don't have to hide in fear due to all the errors.

If Nexon gives an exact date I'll just add on a few days to that.