Make things as short as possible, otherwise people won’t take the time to read it or say it. Pizza Hut’s the Hut, but I still haven’t heard anyone say that. And if you look for a picture of the hut online you’ll mostly get pics of Jabba the Hut who I really don’t want to look at. The same for Radio Shack turning into the Shack. Who says the Shack. When the YMCA said they were now the Y I think they were like the only ones who changed their name to the short form that people actually use. Personally I think that because people text so much they just don’t want to bother writing out the whole title, like ever, so they just shortened it. But people could have always been this lazy, but I wouldn’t know. And it could just be an attempt to sound cool, like calling people by the first letter in their name.