Let my tell you honestly you are mixing different things together or may be you had some mistakes in picking up information. As far as revelation are concerned; he assumed different names because according to his claim and our believers he is the one who is the reformer for all the religions. Every religion is waiting for someone. And it is the privilege of Islam that Allah sent the final reformer for all religions from Islam - and very rightly Islam being the final religion has all the rights for this privilege. You may check the old records, before he claimed to be the Mehdi (when everyone turned against him), he was being considered to be the most honored and strong Islamic scholar of the time. Even today scholars of Islam agree to this fact that he was the one who was giving tough time to anti-Islamic campaigns especially from Christians. Keep laughing and keep waiting for someone to falling down from the sky... (now I've to laugh) ;-) For God sake yaar come out of fairy tales and face the reality. No one ever has falling from the sky and nor it will be.
