correlation never implies causation. no matter how strong the correlation is.
I agree: correlation NEVER implies causation.
correlation OFTEN implies causation, but certainly not always.
I disagree: correlation and causation are 100% linked
here is the thread that inspired the poll: it is up to you whether to read the thead before voting.
EDIT: if you prefer, the second oftion can be read as "Sometimes" rather than "often". That's fine. Obviously option 2 is meant to be the "middle ground" option between "always" and "never", though I may not have chosen the best word at the time I made the poll.