have you ever noticed that USER REVIEWS are almost always about 50/50?

like in a review of ZLauncher:
21 of 40 people found this review helpful:

18-Oct-05 by Bob
Just got my Treo 650 last week and needed a launcher. Tried another program and it was OK, but after one day with ZL....it's where my money is going. File managment is brilliant and quite simple to figure out. Two thumbs up!
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i sorta think that it's a tug-of-war of clicking 'Yes' or 'No' between the publisher and competing publisher or disgruntled customers. ooops, i forgot my litium