I just don't believe that. I've never had one bit of spyware show up on my machine... none. One time years ago, I stupidly installed Gator and had a bit of a tough time deleting it, but that was years ago. Nothing since. I hate to sound like a tinfoilhatter, but I'm suspicious that the spyware removers are baiting their own trap.
There is a change occurring over the last 3 to 9 months most noticeably. Some serious money or national interests are putting serious effort into owning (having hacked control over) as many millions of PC's as they can, without being noticed by the PC owner.
Fewer and fewer users have sufficiently narrow computer usage patterns that they are safe from such attacks. It is rapidly becoming no longer responsible to encourage running malware or spyware detection tools, even as it becomes increasingly difficult to cull the tools that do more good than harm from those that don't do so.
Please don't continue to encourage unsafe computing practices.