Answer:
Outright government censorship or worse- banishment of certain comics. Occult and overly Violent titles got a thorough re-shuffling. Certain themes were either banned outright- or governed tightly ( kidnapping was off limits) but stowaways on ships and spacecraft were ok. Some titles were banned- for some reason this also extended to non-comic magazines. Fate- the occult and fringe science magazine- was supposedly originally title WEIRD but the editorial powers changed the title to Fate. WYRD originally mean both Weird and FATE or consequences. the phrase- As Wyrd would have it! occurs in Chaucer"s the Pardoner"s Tale! ( it is not a western). SO IT GOES,. I like the WYRD spelling. Drug abuse, homosexual acts, rape- all were taboo. Some advertising ukases as well but there were loopholes. I can recall ads for firearms in Dc comics- often full page- Remington Fieldmasters ( real guns).