This program (http://download.cnet.com/YAC/3000-18512_4-75959789.html) has a very odd reputation on this site mainly because of the sock puppets which are giving it 5 star reviews every now-and-then.
One of the reviews, a 1-star, seems to sum it up perfectly: "Almost all the 5-star reviews are written with similarly bad English, similar Pros (great tool) and Cons (no problems), similar name types (Spy Murderer, Jingle Dell, Big Dabby, Spamming Killer, etc.), and similar hostility to the 1-star reviews when expressed. Draw your own conclusions."
It's not only on download.com, but other sites where the program has been mentioned (and allow for comments) have similarly poor English and rubbish claims of how wonderful this miracle-of-a-program is.
"Yet Another Cleaner"/"YAC" is certainly malware and seems to be able to evade most antivirus applications by morphing itself with every update, only for ESET and others to catch up a few days later.
I really don't think it's fair to novice and otherwise unskilled users of this site to have this type of dishonesty up and I therefore request cnet use some kind of moderation and quality control on rogue software such as this.