does any other religion not celebrate birthdays?

drew sagan

The events after Herbert Armstrong's death were a very close parallel to Charles Russell's death. The thought of the founder is ignored and forgotten.
In the case of Armstrong I think this can really be seen as a positive.
Robert K Stock

After Russell's death the Watchtower moved farther outside the mainstream and became despotic.
After Armstong's death the Worldwide Church of God moved closer to the mainstream and encourages independent thinking.
Homerovah the Almighty

With all the thousands of different religions out there I very much doubt that only JWS are exclusive on the matter, Christian or not
drew sagan

After Russell's death the Watchtower moved farther outside the mainstream and became despotic.
Interesting to ponder what the WTS would be like if Rutherford had not gained control of the Society like he had.