When you go to log that cache there are several options. The big two are "Found It" and "Didn't Find It". If you you didn't find the cache, yet you choose "Found It", how exactly should that be framed?Perhaps with a little humor, compassion, or understanding. This is a game. When you throw out terms like 'liar' and 'cheater' you are making more out of it than it deserves and causing people who have come to respect you over the years to see you as a crank.
Are you a liar yourself and don't like the feeling of being one?