What the submitter is losing is control over his reproduction rights.
He does retain rights to reproduce himself, but he's now given away
rights to someone else who can then (if they wish) compete against
him.  And this is for all photos submitted - winners and losers.

Sure, we might get k2chris's promise that he won't ever do that, but
ITS NOT WRITTEN DOWN IN THE CONTRACT, which means that its an empty
promise.

The other loophole is that it is never stated if "Destination-Finder"
always pays the photographer for each image that they later use, and
by how much?  This is because of all of the "loser" entries that may
be used at DF's discretion and again ... as per the rules ... nothing
is legally stopping them from doing this.

Similarly, what happens if DF goes out of business?  There have been
some companies who made promises of copyright assurances, but when
they went into bankruptcy, the liquidator tried to change the terms of
the contract, so as to raise some quick cash by selling the images to
a Stock Photography outlet.

Now it very well be that k2chris as Destination Finder are very well
intentioned and that this photo contest is not a rip-off.
Unfortunately, there's already been hundreds of rip-off
"contests" (Copyright Harvesting through  Deception)  that have fit
this very template that k2chris is copying here.

As such, **if he wants to prove that he's being honest**, he's got to
go in and clarify his contest rules, so as to make it extremely clear
that DF's rights to use the submitter's copyrighted works are very
limited, will always be compensated if used, and have a finite life (X
years) and finite distribution (Y website hits).  Anything less
invokes the 'Slippery Slope' of exploitation potential, so your more
savvy photographers will avoid this contest just as they're avoiding
dozens and dozens of others.

FWIW, if anyone out there really wants their images to be seen that
badly, simply go sell them to one of the easy-to-find Stock
Photography websites.  If your stuff is worthwhile, you'll get royalty
checks as companies buy them for use.

-hh