No, JiveTalk doesn't create spam...the spam I am getting is from YIM. I don't use the Yahoo client because it was extremely unreliable for me and I had to manually restart it several times per day. JiveTalk allows spam messages through so I end up getting more spam than real messages. Since there seems to be no feature to allow ONLY messages from those on my buddy list, I stopped using it. It is very possible I would be getting the same spam through YIM, but I don't recall that happening when I used it. I don't blame the spam on JiveTalk, just the inability to stop it from coming through on my phone. If you don't get spam now it's probably safe to use JiveTalk.