Symmetry wrote:mrswdk wrote:He spelled them correctly, he just didn't capitalize them.
Symmetry's Just Waffling!
Is using the correct letters not part Of SpElliNg WOrds oUt?
Your question was," Is it a spelling mistake?" The answer is definitely no. It is a grammatical error, a capitalization error, but not a spelling error. When you capitalize a word, you don't change its spelling.
https://english.stackexchange.com/quest ... ling-error