as subject and I don't see any rules saying that when I give way some free stuff I can't ask for an email address...
nothing wrong with collecting email addresses for your own personal use. its when you don't say that an email address is required is when its misleading. like what you posted. you forgot to mention the an email address is required, i call that misleading. your not the only one and your infraction was a warning and i think you know why. if you require an email address, say so.