Many people make the mistake of thinking that a manufacturers support forum is the same as an open discussion forum such as Anandtech. They are not.
The sole purpose of a manufacturers support forum is to give support to their customers, and most of them will not allow open discussion, or for you to name competitors products. Their policy is normally one of only allowing what is relevant.
It would be totally naive to think that out of all the Crucial SSDs sold that you wouldn't get the odd faulty drive. That does not mean that the product is inherently faulty. It stands to reason that the more product you sell, the more people will show up on their forum with a problem. This can also be seen with SandForce based SSDs on their respective support forums.
I am reliably informed that there are 4 Sandforce based SSDs sold for every one SSD using another controller, so it stands to reason that it could appear that SandForce based SSDs are inherently faulty, when in actual fact the amount of drives with a problem is a drop in the ocean when compared to the amount of drives sold.
I would be pretty confident of saying that the same will apply to Crucial, in that the amount of faulty drives is a drop in the ocean when compared to the amount of drives sold.