[gwbas1c]

I would probably say that your role isn't a "coder," but is more of a team lead or manager without the title. Other than that, I don't understand your situation well enough.

I also haven't reviewed your code!

But if you are specifically writing code that has the kind of errors that I describe, or are continuing to "add fuel to the fire," I would set very clear standards and expect that you meet them. I understand that you can't fix every problem overnight, and that you have to pick and choose the things you fix carefully.

But if you continued to, for example, write code that was vulnerable to SQL injection, after I made it clear that this was no longer acceptable, yes I would fire you.

Edit: Likewise, if you were reviewing someone else's code and allowed SQL injection, I would consider you "the source of the problem" and fire you. If your "20 lines of code this month" contained SQL injection, I would wonder why, after setting a clear expectation that SQL injection isn't allowed, you couldn't take the extra five minutes to write parameterized SQL, and then and fire you.