dispel magic, shadow priest 4p bonus pvp set and msbt

[Mako Mori]

4 pieces set bonus for shadow priest pvp set is: "When your Vampiric Touch is dispelled, the dispeller is instantly feared in horror for 3 sec." I'm wondering if that's working 'cause i've dispelled some spriests and I've never got feared after dispelling anything from them. My other question is about dispel magic(priest spell). I use mikscrollingbattletext(msbt) addon to watch what I dispel on my screen. When I played wotlk and cata, it always showed whatever buff I dispelled or was dispelled from me. It's not like that in mop. I don't know if it's the addon that requires configuration it hadn't needed before or dispel isn't working right. I use platebuff to see spell icons above my target's nameplate and when I spam dispel I didn't see anything being dispelled. To test it, I got the glyph of dispel magic which deals holy damage to a target after a succesful dispel. The addon, msbt, shows me the damage done and I can actually see what I dispel with platebuffs(I dispelled fear ward off a priest and some dk's spell, can't remember the name) This is giving me the impression dispel only works when glyphed. But it might be just me and my lack of awareness at late hours in the night. Can anybody make a list of dispellable spells? I've read on blizz forums mage's "heating up" and "pyoblast!" could be dispelled by a priest but i don't see that working here.