Even in Iron I see people entering site, it's absurd to be in Plat, have instalocks, and have people not enter or push for map control. Plus, they don't know the difference between HOLDING an angle and hiding. When you hold an angle you're holding the space they cross, hiding, you're just unprepared, crosshair looking at nowhere valuable or making it that you can only have an attempt at killing them when they're already in site.