Some don't see gamification as cheating. To a certain degree I will agree. Those learning how to game the system show the flaws in the system.
Some are just here to grab what ever they can get and either don't have a clue or just don't care about the impact on the reputation of the community, the success of the project, or the value of STEEM/SBD.
Sometimes it is a language/cultural barrier and once they understand the problem they stop abusing the system.