I think that calling solo Toto-Rak farming an exploit is pretty shaky. Where do you draw the line on what an "exploit" is?

1. Is duoing Toto-Rak and splitting the drops an exploit?
2. Is duoing Toto-Rak and giving all of the drops to one person an exploit?
3. Is duoing Toto-Rak but leaving one of the party members AFK at the entrance an exploit?
4. Is entering Toto-Rak with two people but then having one person drop party and leave after zoning in an exploit?
5. Is one person playing with two accounts (i.e. dual-boxing) to do any of the above an exploit?