I logged into one of my reviewer accounts at a Wiley journal this morning and was greeted by a redirect that took me to a page with the following message:
We appreciate your involvement with this publication, which is published by a John Wiley & Sons company. The publisher would like to contact you by email/post with details of publications and services that may be of interest to you, specific to your subject area, from companies in the John Wiley & Sons group (only) worldwide. Your information will never be passed to any third party companies and as part of any communications you will be given the opportunity to unsubscribe from receiving further contact. Please indicate whether you wish to receive this information by answering the CONSENT question below.
Asking someone who is already working for you for free if it’s OK to also try to sell them stuff while they’re doing it seems like a pretty good definition of classless to me.