We do not issue warnings anymore; please re-read my post.
I said that you shouldn't reference what you think other people are doing in your dispute; the rules are provided to users, through the Rule List and through stickies. You can't assume that other users know the rules any better, or that they're not getting in trouble for their posts; follow your own interpretation of the rules, and if that interpretation is deemed inaccurate, the infraction serves as a warning that your definition needs to be revised.
I stand by what I said before; the infraction shouldn't have been reversed in the first place.