It is probably warning about 3rd party cookies, which would be the google one.
I personally am pro-cookie. The edible ones anyway.
Nope. Cannot log on unless cookies are enabled, even if the TNF cookie is already there.
Edit:
If I enable cookies to log on and then go back and disable cookies and the Google tracking cookie it allows me to post. At least it did for the original post of this one.
Edit 2:
I went back and checked cookies and even though I disabled cookies, more showed up.
Edit 3:
Now it won' let me edit my post unless cookies for this site only are enabled which also brings in the Google metrics cookie.
Edit 4:
Now it lets me post with only the Tuslanow cookie.