This user has more than 200 rep. On Stack overflow but why he hasn't got the +100 association bonus on Super User?
Link to user: https://stackoverflow.com/users/1629471/sam
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It is because he joined the Super User community, before question votes became +10, so when he joined Super User, he only had 146 reputation.
Now he has 291 reputation, since up-vote reputation from questions became double than before, here is the post announcing question reputation doubled: