Lately, I've been passed by on spell caster loot (rings, weapons, etc) because the item has + Hit on it, and I mainly play a healer spec.

Should I not be rolling on +Hit Items?
If it didn't have + Hit, would loot be considered Healer only, and DPS would be asked to pass?

I just want to know what the etiquette is for + Hit loot.

There is one legit case where it can be useful for a healer to have hit, and that is trying to dispel against a boss. I mention this because we don't like the idea at all and have plans to change it. It's not fun when you try to dispel say Fusion Punch, miss, and wipe.

In the meantime, be aware that dispels can miss in PvE against targets higher level than you (which is inconveniently, bosses).