Posts of the type "Can't you guys see it's broken? You better damn fix it" or "They way you did it sucks, you can do better!" usually don't generate a lot of attention with the devs.
If you want to contribute, write posts of the type "Feature x has problem y, when actually it should work like z. You can reproduce it if you follow steps a,b and c. See the attached screenshot and track for illustration."
Or on the topic of wishlists: "Feature x works right now but if we also had y, it would be a lot more useful to players". Telling a dev he needs to invest some "love" into a feature really isn't all that much to go on. He probably knows himself that it needs work. What he possibly doesn't know about is a cool feature that you saw somewhere else or thought about that would enhance capability.
Oh and rewriting the netcode is *not* a small wish.