I have this "problem": when I open iTunes, Spotify starts automatically; as you can see in the attached video. I really don't know why this is happening. I'm on Mac OS X Yosemite.
I've also tried to completely reinstall Spotify but nothing has changed.
I have the same problem as well. My poor old Mac can't cope it really slows it down. I hope there is a solution for this.
I have this problem as well. Very annoying.