Two questions:
1. When did the "warnings for discussing warnings" come in, and is it tied to the new card system (i.e. is it retrospective to the points system)?
2. If the point of the card system is to discourage inapt behaviour; surely this achieves the opposite? If people advertise the fact that they have received warnings for spamming or offensiveness or whatever, that would serve as deterrence. Keeping it secret just means that people know that there are disciplinary measures in effect - but not what for.