Jehovah's Witnesses; what do you think of this concept in relation to your teachings?

The Jw org makes it up as they go along; if something does not work out the way they said as is the case 99% of the time, they just simply make up a new understanding and p it off as new light and a clearer understanding. They will always refute any disagreement that they do not know what they are talking about, but are quick to say that the new clearer understanding is truth. The Jw org is a joke religion and likes to take the piss out of everybody