A recent post: "I also agree with Gary, four variants is overkill and more that two leads to problems also."

So please explain about the problems, as I have planned on using 3.
I checked many various types of sites over the weekend.
Some had 2, some had 4, some had none. Most had 3.
Two other web design programs that are in my top 3 choices have a maximum of 10 and 25. In general they suggest 3.
So What's the deal? On page 281 (user guide 11) the title is "Multiple variants" and not a couple.