lowercase L is a blog dedicated to the misuse of the letter L. Blogger William Levin explains:
I have noticed that, when people create handwritten signs, they sometimes choose to capitalize every letter except the letter "L". I can understand using some lowercase letters like "i" and "y", to stylize the handwriting. But why confuse matters by using the only letter that, when lowercase, is identical to an uppercase "I"?
I have seen this before, but I didn’t know it was so common! Link -via mental_floss