If you were wondering where the reputation bar is you can only view it on the forum and so to add a reputation to someone just look to your right then there should be something like this
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the one on the top is to add a positive reputation and the one on the bottom is to add a negative reputation the dash in the middle is to split those two up and we also have the thanks button above it gives 3 positive reps note you can only give 3 reps a day. I hope this helped for those who were wondering