Healers who rescue pull tanks into mobs.

[Awha]

Because the few times I've reported, the outcome has been satisfactory.
And pretty fast too.

Unless you happen to know the person you are reporting or the friends of said person, or they tell ya when the come back but that seems odd. You have no real way of knowing if SE does anything regarding the issue outside the classic we will look into it. Cause I have done it a lot and have been told countless times I will be reported and never got an in game suspension. Do not get me wrong FFXIV GM team does respond quickly to issues of harassment, just when it comes to taking action unless you wave a neon sign around that I am doing x because I wish to harass y. I do not think they do much of anything.

Though if they did help ya and punish those in your case that is awesome. Though I rarely say much of anything ingame so maybe GM's just give players like that the benefit on the doubt.