Seriously, does anyone expect people with the pointbuy system to not put a minimum of 17 and 16 on these stats? Same thing for roll stats, just they are 2 different ways to create the character and get better optimization. Having an 18 allows you to choose one or even two feats throughout the adventure without leaving you without maxing out your main stat. In other ways, the only way to make characters different is about what gear you have, and all you have to do to see that there are a lot of people getting the same specs or gear templates is go to youtube, redit, or similar and search info, all the people do the same thing with electric damage combos, tiefling flaming blade and all that stuff. At least if we can choose a couple of feats we can be different from others.