jschie #1How come that the rating of some people various so much ?, i just won, gain 10 points, the opponent loses 132 points
mrburns123 #2If someone is new or hasn't played in a while, the rating change per game is higher, so that the rating approaches their strength faster.
pranav15 #3? means provisional rating. en.lichess.org/qa/342/what-does-a-question-mark--next-to-my-rating-mean (this might help)