One of the things that I never really noticed growing up until I began learning about other languages and the elegance of writing systems is how, in America for sure, we use letters like syllabic glyphs as well on occasion, particularly when we are reading an unfamiliar word and find a consonant cluster difficult to pronounce or like a pairing of letters is weird.
No better example can I think of than the division of some writing "okay" and others writing "ok."
I guess what I may be trying to ask is: is it normal for people to insert the name of a letter if it stumbles them in a word?