Geez man, what crawled up your ass?
From the tone of your post I should ask you the same question. I've been nothing but civil and met with nothing but absurdly angerly dismissive replies.
This is a forum for PUBLIC discussion, as long as you aren't spamming, then you're allowed to post. Bladebla was just showing how he, and quite a few other members of this forum, wish you would stop complaining about it not being open source
Those two sentences are self contradictory. I'm allowed to post, yet I'm not allowed to "complain" about the emulator not being open source?
No. What you're (attempting) to talk about is forks. No one uses a fork if it's nothing but a rehash of the original. The original gets upgraded more often and is written by (obviously) better programmers.
Only when a fork surpasses the original does it get any real attention.
A lot of people believe that forking is a failing of open source, but I don't. Let me give you an example. Let's pretend Dolphin doesn't support save/load state, but it's open source. Someone who really wanted that feature could fork the project and add save load state. The original developers might then realize that that feture is important, and will simply download the fork's source code, examine it, and add it to their program. They've not only added a new feature which may not have otherwise been added, they've also saved the time of having to code it from scratch.
Sometimes forks can spawn an entirely new form of the original though. Someone might take OpenDolphin and fork it to er... heh... OpenSeal (bad pun, I know.) which takes a completely new approach to core design. The different approach is based on Dolphin, but might run Metroid Prime perfectly where the original would fail. But perhaps the fork isn't perfect. At the expense of running Metroid Prime, it breaks compatability with other games.
Now you have two emulators. Not a unified project.

But I see that as a lot better than a less developed unified project with less features.
Such are the benefits of open source and forking.