Originally Posted by
sheffield hatter
One point that hadn't occured to me before is that some people revise their reviews for revisits, instead of doing a new review, so that a pub may change from, say, a 5 to an 8. In effect, the original 5 score no longer exists. (If this reviewer is the only one who's done a review, the pub's "average" score shifts from 5 to 8.) This affects both the pub's score, and the individual reviewer's average score too. (Compare someone doing two different reviews, one with 5, one with 8 - both scores still exist, and the pub's average is 6.5.)