I really don't like it when people use 'words' like; Luv, u, no(for know), ppl, tho, etc, etc.. It feels like they don't want to even talk or they have something better to do. Also, imo, it makes them look unintelligent. I don't really have a problem with acronyms like Idk and ttyl. But even those need to be used in moderation. When I talk to someone, I want to actually use real words like a human being. Lol Mispelling of regular words is another one.