How many times do you post a www.... and intend for it to not be hyperlinked?
I can't think of a reason why you wouldn't want it to be clickable.
Ive just posted the same links 3 times and every time I have forgotten to check the make links clickable button. In fact that option isn't even available on the op (mobile site).
Please can we have links set to clickable as default. Orat least have the option of setting it like that in the custom settings....