/autofacetarget can be both convenient and annoying. It's useful for most classes so that you don't press an attack and then it not hit because you are not facing it enough. It's annoying for healers though. On a healer, I macro my attacks like so.
Code:
/autofacetarget on
/action "Ruin" <t>
/action "Ruin" <tt>
/autofacetarget off
This makes sure that autofacetarget is off when healing so that I don't turn around while healing, which is a big problem if there is a gaze attack while healing, which actually happened in the one savage floor I healed. The problem with this is the attacks no longer queue, but it's something I'm willing to do so that I don't automatically face players while running just because I healed them.
PvP is already being changed soon and UI elements can already be changed, hidden and resized in almost every way. You can even use different UI themes including the traditional blue one from a lot of FF games.