Final Fantasy XIV Database - Ffxivpro.com

I dont think they'll nerf it.
It's been around forever, level sync just makes it easier.
It's been happening exactly way it is now since level sync.
You need 3 summoners anyway, so really it's only 2 jobs leeching (3-4 if you alliance, i sometimes do)
This is probably the ONLY way for summoner to level. No one wants to XP with a summoner, so live with it.
It's not cheating, it's a strategic way of leveling. It takes al ong time and you can only get roughly 40k/hr,
you can almost get that in a merit pt. I've had 30k/hr in merits.
You're also not guaranteed to get COR to reset your 2hr, My group has gone 1/5 on getting 2hrs back, then one day 2/2.
I don't know about SND I've never seen them down there tbh, Vicious only ones we sometimes bump into and we alternate pulls, (you go/we go/you go/etc), they're very friendly and nothing bad happens.

If SE wanted to nerf this, they would have already, but you're not gaining anything that breaks the TOS. You're not making millions of Gil or anything of the like. In the end it's just a quick way to level for mainly Summoner and Summoner NEED this.

As for people *** up others runs, what is the point? Just let people do it, the faster people do this and get leveled, the quicker they leave.