I agree the biggest flaw with a lot of IM products when they promise "push-button" riches like auto-blogs, mass blog commenting software, mass "anything goes to get you traffic" software, etc... is that they provide no real value to the end user. Like you said at the beginning, it won't work if it's not a win-win for everyone. You may get a few bucks from it now but it won't last. So it's not a sustainable business. Google and Facebook spend millions on making sure their users have a good experience and keep coming back. So whatever you do, if you want long term results, focus on your value add. Think "if I were to disappear tomorrow, would anyone miss me?"

-Jeffery