Why do you say that?
Because only a christian in good standing can be qualified to act as any form of teacher.
How did you become a jw? my best friend growing up was a jw.
I have never been baptised as a Jehovah's Witness. Once upon a time I set out to determine the meaning of things. I was raised Nazarene/Baptist. I read the Bible and I read literature from many denominations. I even read lightly over some non-christian religions as well as evolution, although a little more in depth. My goal was to find the truth through the process of elimination.
I was very disillusioned with most christian denominations with their many contradictions and hypocrisy. And I grew tired of hearing "I'll ask God when I get there." If I were to go the scientific route then evolution must be fact and it is not as far as I can tell. Nor does it even seem probable to me.
I was really first exposed to Jehovah's Witness when visiting an abandoned house and found a room literally full of Watchtower publications, old and new. I set out to disprove them like I did the rest. But I could not, at least not using the Bible. Their explantion is the only one that made sense of all the garbage and caused the Bible not to contradict itself.
I do not believe they are 100% correct or know everything. But some differences with the Bible and Christendom just cannot be reconciled to me and the denominations just seem to skip over these parts. The way the jw explain the Bible makes everything fit together.