I came upon the following sentence when reading this article on Erdogan.
The president’s portrait stares down on Recep Tayyip Erdogan University in his family’s hometown of Rize, on Turkey’s Black Sea coast. Little says “personality cult” like naming an institution after a leader while he’s still alive.
I believe "personality cult" here refers to cult of personality. I do not see what the words "little says" mean in this context - is it sarcasm ? What effect is the writer to trying to produce?