Why make unobtainable achievements?
So we have these utterly pointless and useless unobtainable achievements in a few games now and more are to come i'm afraid.
I think it's fair that those people that have gotten such an exclusive achievement can keep it, there is always a reason behind this and that is because you did something special for the game, so this is abselutely fair.
What i don't really find fair, is that these unobtainable achievements affects the overall Game Completion Rate, so a specific game can never ever be Fully Completed unless you have that rare unobtainable achievement.
This is a feature Steam has made so people could have fun completing their games and honestly, every game should always be available to Fully Complete for everyone that feels like doing it, no matter how long it would take them.
I don't say remove these achievements, but i say, let players keep their exclusive achievement, but atleast make it, so it won't affect the overall Game Completion or something.
This is just a minor idea, but overall it's mainly to make the developers aware and then maybe they can figure something better out that works =)