I had answered this question 2 days ago. The user had accepted the solution to my question. Today, he unaccepted it, and has marked a new answer (posted recently), which has some of the same wording my answer has! (Note the usernames)
So I went on and find he does this on a majority of questions. It looks like the user is gaining rep from a answers to questions that were asked by folks who "joined" 21 days ago, or from the other user with a similar name.
- Update App Store submission before review
Also, the number of up-votes he/she (assuming it is the same person at this point) gets is sometimes disproportionate to the quality of answers.
- is it possible to download image at low resolution from url?
More bad answers with upvotes
I agree, it all hardly matters, but I am curious whether there is a way someone can spot a pattern if he is gaming the system in such a manner.
More detective work:
Set of weird accounts created few days ago with question(s), answered by Mark. (not sure if it is a pattern though)