And now people are going to enter other people's names and e-mail addresses into some random website?

And now people are going to enter other people's names and e-mail addresses into some random website? How's that a good idea? Is someone, next, going to make a site that tells you whether someone suspected you might have been in the #AshMad  database?
http://money.cnn.com/2015/08/19/technology/ashley-madison-search/index.html