Like everyone else, I HATE the new message system. It was bad before, but now it's just horrible. I was hoping it would either get fixed or I'd get used to it, but the one thing I can't get used to is the apparently hurt feelings that people get when I "leave a message". My awesome guild is very active, we talk and help each other a lot...sometimes I am unable to help a particular request; in the past I could delete these messages and move on to one I can, but now it seems that seeing someones name as "left the conversation" makes some feel like that person doesn't care and aren't helpful. So I'm afraid to delete messages now (ok, not boogeyman afraid, but you know what I mean!).
It's such a bad taste in my mouth, that I dread checking messages, and in fact rarely read them anymore - I'll glance over the subject, but most are titled "Group Message", so that doesn't help much. It's completely ruined the guild dynamic for me.
I find myself checking in less and less and am putting my bldgs on 24 hr so I only have to come in once a day and it's really only a matter of time before I drift away completely. ;(