Housemates should be told the prize (or penalty) of a task before starting
 

That way we know there is no manipulation.

Without knowing the prize before Big Brother could change the rules depending on who won or lost.

i agree

Or alternatively, such in the case of the bed task, put a note with the prize details in a safe beforehand, that the housemates can open after the task.

yes, the note option doesnt spoil any surprises

Big brother makes the rules
Housemates are there to be subjected to what big brother wants
That’s the basis of the show

I hope we don't get housemates automatically put on the chopping block/ up for eviction...due to failing a task. Will implied that could happen on late & live,or maybe he just worded it wrong.

Yes agree with that

Absolutely agree. That's the only way to keep it honest if they're not telling viewers beforehand too. Indeed they won't even tell us in the edit (after it's happened) what the prizes are.