Subsided

I'm going to go out on a limb and assume that problems with the game code are probably caused by the coders...

Usually this is the case, but I'll recommend visiting The Daily WTF as sometimes it's caused by the managers imposing idiotic requirements on the coders.

That's a valid point. Still, going back to the original point, which was that these problems exist because Nexon, as a company, allows them to, I stand by my statement that players have a right to complain if this type of thing happens as frequently as it does.

And remember, this is not just now. It has been happening forever. Now there must be ringing a bell at the HQ that this is not the way its supposed to be.
Theres a reason developers use test servers, which should be a replica of the running servers we play on. All this downtime and their extra work all costs them money.
I wouldn't know why they havent improved any of this yet.

And being at it. What about the scheduled maintenance, which ALWAYS extends. Leave some extra hours of wait, and if you're done before said time, people will be happier than if they have to wait for hours every week.