Why are people fighting so hard to get this put in?

"Will take away from RMT"

How? In what way will this work that isnt already in place? People buy time and sell it in game. Well, people already buy items and sell them in game, Dyes, Bond Rings, etc. The only difference this will make is who is paying SE for the time, me or the guy who sold the time on the MW. There is no good reason or positive benefit for adding this system in that isnt already in place. So why even bother?