Perhaps I came across wrong in my original post.
The intention to wipe the achievements (multiple times) is upsetting not because it was hard to obtain the current ones (it wasn't) but moreso because I don't see the point in adding achievements into the game until launch if the intention is to just wipe them every few weeks.
When I got the achievements, I was under the impression I wouldn't have to re-do them all again at launch. Learning that this wasn't the case was somewhat jarring, and made me question why they're even there in the first place.
Some people are also bringing up the "Why do you even care about achievements?" Argument, and I get where you guys are coming from, but here's why I care about them so much:
They give my team and I something to work towards.
We're a very goal-oriented group. It's hard for us to just play a game without a clear end-point in mind. I don't know if that's just something about our shared mindsets, or whatever, but that's how we roll, we're completionists.
As I said, we've pretty much seen all that the current build has to offer, but getting the achievements - thereby bypassing those same achievements later on when there were more maps and more things to do - seemed like a pretty cool idea to us.
But knowing that the effort we're spending on that goal is, effectively, pointless, is kind of disheartening.
Say what you like about completionism, that's just how our minds work. And this news was pretty upsetting for that reason.
If you're on a modded server such as a 50 man, they should disable achievements.
I'm pretty sure they already do.