Why would they? Thats a million dollar question Grr.
They does care about it since their promotions are intended to be used up within a particular period of time. After that if You need the program, you must pay for it.
By this trick we are bypassing the very aim of GOTD and using a program eternally which wasn't intended to be. GOTD never likes this trick as i have noticed.
If You wish to have this tutorial here and on the other hand never want GOTD to sue you, just include a disclaimer in the original post.