You were correct in the complaining and not-understanding part. Allow me to educate you and without shame pontificate perhaps everyone else in this thread with a quick and a blunt explanation. I will not hold back, not for a moment, in order to make you understand this.
First, Wrath of the Lich King realms. The core is outdated and putting fixes into it would be classified as nearly a waste of time because it fades in comparison with our new Lordaeron core. Our development team is working very hard to get to a point where they'll be able to port the entire core without making the other realms lose out on content. We'll do this as earliest as possible.
Secondly, Frostwolf and MoP. First of all to say that our team is not doing anything would be just plainly wrong. The MoP realm receives more fixes than any other private server of the same expansion on the scene. That is a fact and if you don't believe take a look at
here.
Also, MoP is a relatively fresh expansion. You have to consider that WoTLK is 7 years old and that tens of thousands of hours and countless individuals have provided their heart and soul into making it playable and enjoyable. 7 years. We've been running this expansion for a very short time and our team has managed to pump so much content in it that it's incredible and it is not to be underestimated. We will continue to work on the expansion and anyone who says that we have not worked is ignorant of the 14 big updates that we did in this year.
5.4.8 is coming and with it further improvements and finally porting older content. If anyone think this is just a copy-paste, they're deadly wrong.
Now to make this clear, we understand the frustration. It's not easy to face bugs and think that someone doesn't care. It's also not easy to be on the other side of the stage and know how something that might look easy to the community is hard to fix. It is also important to understand how much effort it takes just to keep the thing alive and stable with performance optimizations, crashfixes, exploit fixes and so many things that are not visible players that easily.
Do understand that this little crowd of 50 people is managing to deliver content and support that is good enough to compare to that one of the company that is a multi-billion dollar company with thousands of people working for it. We're doing our best and will continue to do so, whether we are spat on or praised.