Why does my manager do this

today in my 8am, my manager asked me to “speak up more” after i gave 3 ideas that no one acknowledged and then he repeated one of them word-for-word and everyone suddenly loved

bro that’s the worst. you actually spoke up, had solid ideas, and they just… let it float?
then your manager regurgitates your exact words and suddenly it’s “brilliant”? yeah ok

Ugh screw that. That’s a great example of a bad manager.