Hey there. From what I've learned here so far in design school, you probably shouldn't be using allcaps typefaces for regular reading, such as how its being used in the buddy chats.
Its illegible, and could be far far easier to read. If I remember right, it wasn't like that before...why not just change it back?
Thats my 2 cents.
Its a bug, it will be fixed in a patch. Thanks for the report.
© 2014 Riot Games, Inc. All rights reserved. Riot Games, League of Legends and PvP.net are trademarks, services marks, or registered trademarks of Riot Games, Inc.