Stopped displaying them on my characters recently, and looking now at the new ", Conqueror of Orgrimmar" title made me think more about this. I've never liked having super long titles like that one, and given how abundant they are today I feel like it's really cluttering up the names too much. Sometimes it's just flat out difficult to get the actual name of a player if they never say anything in chat, since there's such a wild mixture of both prefix and suffix titles.
I'd prefer to just see the character name above the avatar or in the tooltip and nothing else. In fact, I'd even like to see a feature to disable the displays of titles on the client side.