I suggest that siren worlds should be relabeled "Devil's Courtships", after the creepy song of the same name:

"I'll buy you a pennyworth o' priens If that be the way true love begins If ye'll gang alang wi' me m'dear, if ye'll gang alang wi' me?"

"Ye can hae your pennyworth of priens Though that be the way true love begins For I'll never gang wi' you m'dear, I'll never gang wi' you."

"I'll buy you a braw snuff box Nine times opened, nine times locked If ye'll gang alang wi' me m'dear, if ye'll gang alang wi' me?"

"You can hae your braw snuff box Nine times opened, nine times locked For I'll never gang wi' you m'dear, I'll never gang wi' you."

"I'll buy you a silken goon Wi' nine stripes up and nine stripes doon If ye'll gang alang wi' me m'dear, if ye'll gang alang wi' me?"

"You can hae your silken goon Wi' nine stripes up and nine stripes doon For I'll never gang wi' you m'dear, I'll never gang wi' you."

"I'll buy you a nine stringed bell Tae call yer maid when'er you will If ye'll gang alang wi' me m'dear, if ye'll gang alang wi' me?"

"You can keep your nine stringed bell Tae call my maid when'er I will For I'll never gang wi' you m'dear, I'll never gang wi' you."

"I'll gie you a kist o' gold Tae comfort you when you are old If ye'll gang alang wi' me m'dear, if ye'll gang alang wi' me?"

"These are fine words you say So mount up lad you've won the day I'll gang alang wi' you m'dear, I'll gang alang wi' you."

They'd scarcely gone a mile Before she spied his cloven heel "I rue I come wi' you" she says, "I rue I come wi' you."

"I'll grip ye hard and fast, Gold won your virgin heart at last And I'll no part wi' you m'dear, I'll never part wi' you."

And as they were galloping along The cold wind carried her mournful song "I rue I come wi' you" she says, "I rue I come wi' you." "I rue I come wi' you" she says, "I rue I come wi' you."

It expresses the problem of allowing an AI to learn by trial and error what its controllers will agree to. If the woman had had the wit to stick to her first "never gang wi' you" and go away after rejecting the pennyworth of flowers, she wouldn't be having this problem.