It has nothing to do with cliques or when people started to complain but all is about the health of the community. There has been several changes to the leaderboard based on actions of past leaderboard winners as far back as the early parts of the first year of the site creation and not recently.
https://community.soundcore.com/gallery here is a good example… this was taken away due to pictures were basically being done and it was the same shot but at different angles. (like take a pic and step back 7 paces and take a pic)
As I had to state to somebody else who held the same reasoning that it was due to cliques . I always thought we all on the community were all in the same cliques. If you are hearing rumblings of change it has been mentioned off and on since the beginning of the site and throw in a year and 1/2 of inactivity in the Anker community and a fear that the communities was going to be dissolved for other social media outlets
Have you not seen the current user section. After the top 5 commenters it is almost null. If there are only 3-4 people trying for the top then I would almost be certain that number of people commenting to be 8-9 or 10 would be increase several times trying for the bottom. ( It would be more active as folks would try to stay at that magic number. As somebody else jumped into the 10th place then you would have to comment to take it back.)
The big question is why not give folks at the 10th place an opportunity to win or not even on the leaderboard a chance. If they can not dedicate that amount of time but will participate some and are coming to the site, I think that qualifies them.