This is a personal and anecdotal story, but here's what happened. I just downloaded the latest version of Yahoo Messenger (msgr75us.exe). The first thing I had to do to install it was to turn of Data Execution Protection in Windows. I've had to do that with a few older programs, but what is up with this in a brand new version of Yahoo Messenger? Just how are they burrowing into my computer?
Something smells bad about this. Add to that the fact it crashed on the install in spite of me giving it a pass through DEP, and the fact that it required a Macromedia download when I finally got the install to proceed on the third try, and I got rid of it. I went back to version seven. (OldVersion.com)
This version includes an annoying animated ad at the bottom of the contacts list that I'm unable to hide. That was just the frosting on the Yahoo Messenger crud cake. And the cherry on top is the AT&T co-branding -- yuk! As to the ad, I don't mind looking at an ad in return for a service, but the minute you flash it at me it annoys me and I will do just about anything to get rid of it. I did.
Yahoo Messenger never has been the best of the best, but IMHO right now the current version is worse than useless. And I ask again, just why does it need DEP privileges? Something stinks here. I think I'll run Rootkit Revealer just to be on the safe side.
UPDATE: For the time being, you can get the last stable version (7.02) of Yahoo Messenger here. FYI no version is bug free, but this is the best IMHO.