Originally Posted by the810

I agree that the challenge doesn't make sense if you're starting from the scratch and you only do it with the aim of gaining some monetary value.

But imagine you have trips to e.g. Sydney and Canada planned anyway, that will give you 3 out of 6 continents, so now the only extra trips you have to take are Asia, South America and Africa. Then the cost gets much lower (Asia and Africa can be done cheaply ex-IST during a stopover, and you only have South America left where some nice fares are available). And of course, fulfilling the challenge will take you to interesting places - this is a crucial element as far as I'm concerned, the challenge only makes sense if you also get value out of flights you take to fulfil it.

Still, I think TK went a bit too far with the restrictions, sometimes unreasonably so. I take it that these challenges exist primarily to generate talk-about the brand and the last thing you want is articles about how you cheated people. Confusing T&Cs + TK's tragic customer service + TK's tragic IT sounds like a great recipe for a bomb.