It would seem that the general consensus is that this tool is illegal and widely disliked because of its anti-noob potential. I can definiteley see this side of the argument--I am a 56k user at my house, and I take a while to download. In the game, however, my conenction matters not, as I am usually the LAST person to lag. Still, this paired up with a connection speed checker has been the bane of my existence in trying to learn games like DOTA--which has done nothing but foster my dislike for them further.
Still, it Is a sueful tool when used properly. I am a huge player of NOTD:Aftermath, and we constantly get new players who abuse the game and doom everyone else, as it is a team game. Rather than be strictly anti-new-guy, this tool makes it useful in banning those that have wronged us in the past. Sure, there are countless idiots out there, but patience with the new guys and a cold iron fist to the morons is key.
In retroospect, I give this program a thumbs up.