Haha! That may be the case
The sell price for any item(s) I sell on the EE are for the item(s) only, and do not include shipping, unless otherwise stated. Any agreed upon shipping costs do not include insurance, unless otherwise discussed.
Further - you didn't get an infraction. You received a "friendly reminder".
And even further - if you ever do receive an infraction, there is a procedure in place for appealing it - and posting in a discussion forum isn't it.