Plundering your own alt is absolutely pathetic.

The reason why Servers die from day1 and why a lot of lower and mid power leave, is not the 900 cps. It's the whole design of the game. Non-spenders are getting slaughtered everywhere. In Sage, in Matsuri, in decisive Bonds, in GNW and also during plundering. Getting path of sixth sage, to play in Zenith? Good luck with that 4 months into a server with your f2p ninjas!

All they can beat is PvE-Content - which nobody ever called his favorite activity in NO -

Don't get me wrong. Alts are wonderful. If you use them to send yourself missions, go on Wanted Missions etc. It's a utility to many things, but not a solution to the dying servers (which btw. is so by design and an issue which every Browser MMORPG knows).