So I had a strange thought. What if Vi's true name isn't Vi? And is just something she adopted as VI (as in 6) is tattooed across her face.

Which presses the question, why have VI tattooed across your face? Was she is the 6th experiment of something? Or possibly more tragically was VI a prison tag she was given as a child?

Just another interesting thought I wanted to share was Vi was 6 when she joined "a ragtag group of criminals"

It's probably nothing, but i just wanted to share. Thoughts?

I wouldn't worry too much about it, since it doesn't seem to be an integral part of the storyline. As you have yourself expressed, there are a number of things it could be, and it may even be a combination of the occurrences you stated.

Oh no, i'm not worried about it. I'm willing to make a bet the person who did the art just thought it looked cool.

But it's an interesting idea huh?

For example, I don't know if you read the x-man comics. But in the comics you find out that weapon-X is actually weapon 10, implying that there were 9 other weapons before Logan and unknown numbers after.