Streisand effect
Etymology
An eponym from 2003: the singer Barbra Streisand sued to remove an aerial photo of her home from an obscure archive, and the lawsuit turned a photo almost no one had seen into one everyone downloaded. The name was coined a couple of years later and stuck.
noun · /STRY-zand ih-FEKT/
When trying to suppress information ends up drawing far more attention to it.
What it names
Why cease-and-desist letters and takedown demands so often backfire in public — the attempt to hide becomes the story.
Example
Threatening the reviewer only triggered the Streisand effect — the one-star review went viral overnight.
Related idea
Backfire effect is the belief-level cousin; the Streisand effect is specifically about suppression drawing a crowd.