Simple truth.
If they beat me....they must be cheating.....
Seriously....Yes there are some cheats, but also some very good players who have mastered the game, by hard work, and have taken the time to learn every aspect of it.
It gets a little tiresome when someone complains just because they cannot score as well as others.
They are usually average players who will never take the time or effort to master the game, and will often create new accounts to dupe genuine newbies....bottom feeders in other words.
I have no time for cheaters or multi's. but to be honest, they do not affect me as I play for fun.