Every child and baby is different, i really dont think there is a right or wrong answer for this. I'm a new mom and put a little cereal in my babys formula at night cus he was waking up all the time, never really slept except during the day. Now with just a little bit of cereal in his bottle, i'm able to get him to sleep about 5 hours at night, so when i wake up to feed him again, i'm not so frustrated due to lack of sleep lol.
My son is almost 2 months old and eats like my brothers...like he cant get enough...so i dont think putting cereal in his bottle is a bad thing, he's able to get it down easier then if i put it in a bowl and spoon feed it to him.
Everyone is entitled to their opinions and should trust their instincts. If your gut is telling you that you shouldn't feed your baby cereal, then dont.
I've heard so many different things from so many different people, i dont know what to believe. It never hurts to talk to your pediatriction...its their job to know about babies and whats best for them at what age.