Full list of all 20 TrueAchievements achievements worth 0 gamerscore. It takes around 1-2 hours to unlock all of the achievements on Xbox One.
You used the TrueAchievements app on 20 consecutive days
You read 100 different news articles
I voted on 25 solutions
You read a news article within 5 minutes of it being published
You viewed a milestone from your friend feed
I viewed 100 different achievement solutions
You viewed a currently running challenge
You viewed an achievement with a ratio higher than a 10
You sorted and filtered an achievement list at the same time
You used the TrueAchievements app on 10 different days
You previewed five gaming sessions you signed up for
You voted on 10 solutions
You voted on an achievement solution
You viewed an achievement or challenge solution
You rated 10 different games
You viewed the TrueAchievements app achievement list
You rated a game!
You were top of a game page friends leaderboard with at least 10 friends on it
I rated 25 different games
...is talk about TrueAchievements