I am member of several mail groups, and have quite a few friends eager to show share some extremely informative or hilariously funny message with me.
I usually don't mind getting forwarded messages when the content is related to my primary interests or something relevant. But more often than not, these are pretty mundane, unfunny jokes and pseudo claims/information.
The worst offenders though are those mails with the forwarded message in attachment, often in a chain of attachments. So, if you want to read it, you have to open a series of attachment, and eventually you will find that obnoxious one line joke!!!
Anyone who forwards email to me, remember. If you don't have time to spend my reading experience better, DONT forward them to me...