There's two arguments here.

One: that's getting into the pedantics of what being qualified means. I perceive it as if you feel that way. Considering the sub I think self identification of that is fine.

Two: that you can do things outside of your job description that you are unqualified to do and if it's good enough to show it off.

I am talking about both of these things. I constantly do shit that I perceive that I am unqualified for and also things that I am unqualified for. Also, as previously stated since we're getting weird here, only if it doesn't hurt someone.

We can reframe this as underqualified or however you want to take it. At a certain point it's understanding the intent of what's said.

Tldr; do shit you're unqualified for.