Why does everyone use PF as a representation of the game?

[Bsrking5]

snip

Astrologian 53,899
Scholar 86,923
White Mage 103,959
Sage 76,565
Number of parses for last 2 weeks just for healers, Standard settings.
Top 50 is just bragging, a clear is a clear. I'd be surprised if top 50 uses PF for parse runs anyways.