Wow....i thought we had finally got over this issue, soooo, they provide free content and you are going to try and say its unacceptable because it got popular? Stop being an ungrateful child. If anything this is the reason a lot of mod authors stop developing all together. 1 Large thing you are ignoring is that this is a hobby/side project for them. None of them make enough money off of the ad revenue (which from what i have heard is pretty abysmal at best) to make it even worth making the mod if they didn't enjoy it. A lot of them (Such as one of the main/lead devs from xycraft Soaryn) are college students who recently finished studying and taking there final exams so they probably just started working on the update as there College is and should be there top priority. Just be glad they dont make it a private mod or something. They could just release it on forgecraft or other private servers if they wanted too. But they choose to Graciously share it with the minecraft community. The LEAST you can do is show a bit of self control and keep any comments to yourself and wait patiently like the rest of us, and any server owners who shutdown their servers to wait for the 1.5 update are idiots as everyone knows it can take quite a while to update.
But Gama you forgot about the part where they have to devote 100% of their time to us, so we can complain when something doesnt go our way. waaaaa waaaa!