It seems an eminently sensible way to approach – again, the initial personal approach depends on the type of scheme you are in and the personalities involved.
Similarly, the wording of the “advice note” could be critical – too harsh and it could get people’s back up, too conciliatory and it might seem like you aren’t all that bothered.
It’s certainly worth every EC putting an item on their agenda to discuss how they want to deal with complaints and alleged breaches of by-laws. It my be that different breached, and their severity, might require different approaches.
But this is what democracy is all about – we get to decide for ourselves.