I continually find it amusing that people are still trying to predict that which Jesus clearly stated would be hidden from us, that is WHEN, and at the same time feel pity for such ones.
Faith in God, and service to him, faith in his Son's ransom sacrifice's power to redeem us, practicing the fruitages of the Holy Spirt, prayer, doing our utmost to avoid sin, and helping others do the same are what matter.
Everything else is an opinion, an interpretatiion, trivia, and missing what is important. The meaning of the locusts, the "date" on which Christ's parousia will occur, the length of Hezekiah's beard, etc- these are unnecccesary diversions to what is important- our salvation, and what is neccessary to gain it.
That, in a nutshell is what is wrong with EVERY religion, not just JWs.