Looking at the name I imagine that English is not his first language. Gunnar is a Scandinavian/Germanic name. "Vowels" in English is "Vokaler" in Norwegian.
I read it as vowels, although with a typo. Whether or not the typo is intentional, I guess that shows that we can also error-correct although not with 100% accuracy.
axiosgunnar's profile says he is from Riga.