When you think about it, though, there are rather a lot of variables to consider here.
On the one hand: to what extent am I attracted to the other participant(s) in this sexual encounter? Are we into more or less the same things? Is this happening at a time when either party would be cheating on someone else with significant negative consequences? What are the risks of catching something unpleasant? Is the sex going to be mind-blowing for all involved, or just so-so? Am I missing the point of the “danger and anonymity” bit by asking all of these questions? (probably.)
On the other hand: to judge from the picture, the Huge Fucking Bucket contains something rather fancier than your standard Kraft blue box. What kinds of cheese are involved here? What kind of noodles? How huge a bucket are we talking, precisely? And it isn’t too dry, is it? Because if it is, I’d take almost any sexual act instead. Overly dry macaroni and cheese is an abomination.
Basically, I’d say that good sex is better than substandard mac-and-cheese, but good mac-and-cheese is generally better than substandard or overly risky sex. In the unlikely event that I’m ever offered this choice, I suspect I’ll be paralyzed with indecision for some time.