There’s also a case for repeating blog posts and content marketing placements over time. We can’t possibly read all the content all the time — so there’s a good chance the first time you published (something good and worthwhile) most people didn’t see it the first time.
Good stuff is worth repeating.
There’s one more case for repeating yourself.
When people read an idea for the first time, they say “nice idea” and move on.
The second time: “I think I’ve heard about this before.”
The third time: “This sounds true.”
The fourth time: “let me try this.”