Ashley Madison's claim to fame is "Life Is Short, Have An Affair" however, in light of the recent hacking scandal their customers may think, life wont be short enough if my name is leaked and made public.
For the most part affairs aren't what they used to be, simply because cheating in the 21st century is simply begging to be caught. Yes, there are those who figure they're smart enough to avoid being caught and to that I say your partner just isn't interested or tuned in enough to catch you.
In today's world where its possible to track everybody and everything every hour of the day, cheating is a huge risk, perhaps sought out by extreme thrill seekers. Cheating or not cheating is an individual choice, but chose wisely or face the consequences as some like Josh Duggar facing.