General Chatter

A comp is currently being promoted here on that is run by Hiddup where you can win a $15000 Flight centre voucher. In the T&C, I found this condition.

"If it is found that an entrant has used a third party (including an online competition site) to enter The Competition, the entry will be deemed invalid.

Does this include If so, why would they have such a rule? What's their problem with people entering from this type of website?

Here is the above-mentioned comp.