MMO Cheats?

I noticed on the vote list, DC Universe MMO was an option. What kind of cheats could possibly be put into an MMO game that wouldn’t get caught and flagged ASAP? Is that actually possible or is it just on the list mistakenly?

The list for requesting games is taken directly from steam. Multiplayer games do not get filtered out.
It is there mistakenly.
@Zach is multiplayer only.