Please change DMT and cube sales into a 24 hour so not everyone is on at the same time. I don't see a reason as to why this isn't a thing especially given Nexon's track record of having non-existent servers.
Both KMS and Anna do not care about the player base, simple as that. They think everyone wants to grind like KMS but in reality a lot of people have lives outside the game. Even if the player base drops, they don't care because they will just start releasing events for whales that keep them afloat or new cash shop items to keep F2P around.
But people have had 6 months to prep. If they haven't done any prepping during that time, two weeks won't make much of a difference.
People need to prep weapons for her too. And nobody has a weapon for adele ready at this moment, nor will they if Adele is released day one of Rise.
Again two weeks is not much prep time and most of the work already started when Adele was first announced. That means whether she is available next week or the 24th, most people should have the NX/mesos/maple points to star gearing her upon release. The only difference is the delay in playing her which a lot of people were looking forward to.