Years ago, I made a mistake.
It began when I found out something that, at the time, I couldn't believe I didn't know and hadn't noticed up to that point. It came from a post on the Zukahnaut blog, by Ötty Justason, where there was a handy image explaining how the capital "I" should be written when lettering comic strips and comic books. The blog is no longer there, but it can still be accessed on the Internet Archive Wayback Machine.
Basically, the normal "I," without crossbars on the top, should be used in most circumstances, and the crossbar version of "I" should only be used in very specific cases, normally if it's a personal pronoun, the first letter of someone's name, or in an acronym.
Someone I followed on Twitter retweeted this, and I was a bit skeptical, as I had never heard of this rule before. I used the crossbar version of the "I" all the time, in drawing comics as well as in normal handwriting. At the time I regulary drew a webcomic called The Bird Feeder, and I even created a font for use w…