Steam is modifying its review system again. Now, games that were gifted to people don't count towards a game's overall score.
This has been met with rather critical response, as many people point out that they were gifted games by friends and thus aren't just promo copies that usually garner positive reviews.
http://steamcommunity.com/games/593110/announcements/detail/563352991934009789
I don't really have a problem with this. It takes away the score impact of games that were gifted by the developer for positive reviews and the people who gift games to their friends were probably a small enough percentage of the total sales that it isn't going to have much impact on overall scores anyways.
This stuff isn't going to matter for games like Fallout 4 that sell millions of copies. It might for those terrible games Jim Sterling talks about in his videos though. Those kinds of games aren't going to sell a ton of copies so a developer gifting copies for positive reviews can have a big impact on their average rating.