I'm curious what their definition of "singer" is? Celine Dion didn't make the top 200 when she could easily be top 10. Kelly Clarkson only 194 despite being the most technical vocalist of the current generation. Meanwhile Taylor swift, a decent singer, is above either of them lol.
Many singing communities are trashing the list since it's not showing good vocals, rather popularity.
Can't you just read the whole fucking article? I'll copy and paste to make it easier to you:
Before you start scrolling (and commenting), keep in mind that this is the Greatest Singers list, not the Greatest Voices List. Talent is impressive; genius is transcendent. Sure, many of the people here were born with massive pipes, perfect pitch, and boundless range. Others have rougher, stranger, or more delicate instruments. As our write-up for the man who ended up at Number 112 notes, “Ozzy Osbourne doesn’t have what most people would call a good voice, but boy does he have a great one.” That could apply to more than a few people here.