The seven deadly achievement sins, ranked in order of most sinful to most expiable.

SIN THE FIRST: THE BROKEN ACHIEVEMENT
Whatever state you leave your achievements in is the state I leave your soul in.

SIN THE SECOND: THE MULTIPLAYER EXCLUSIVE
Everything dies. It is the nature of entropy. Your game is not an exception.

SIN THE THIRD: THE DLC EXCLUSIVE
We have a special corner of Hell for people who lock their achievements behind a pay wall. It is particularly unpleasant.

SIN THE FOURTH: GRINDING ACHIEVEMENTS
This does not take skill. This does not even take luck. This just takes poor sleep habits and precious hours from one's life.

SIN THE FIFTH: TOO MANY ACHIEVEMENTS
This is what a game amounts to if they frequently commit The Sixth Sin.

SIN THE SIXTH: POST-RELEASE ACHIEVEMENTS
Your game is not early access. When a game is perfected, when every challenge it offers has been mastered, and every secret it holds has been exposed, it should not suddenly "unperfect" itself. If I liked a game enough to perfect it in the first place, I obviously wouldn't object to having more reasons to play it, so this is a low-ranking sin.

SIN THE SEVENTH: SECRET ACHIEVEMENTS
This is hardly a sin and here at Hell we recognise that. It's more of a minor inconvenience. We both know I'm going to look up what the secret achievements are once I've completed the game. Hiding them just delays the inevitable.

That concludes this PSA from Hell. Always remember, "Everyone is evil. But some are more evil than others."

P.S. Click here to dox yourself =)