Another person afraid of the boogeyman!THIS!
Unless you have really deep legal budget pockets and running international contests is your main focus then simply ignoring international law is playing Russian roulette. Doing all the research for 196 countries is expensive so I can understand when a site like MR does basic due diligence and decides where they will draw the line.
Guys, my posts go through this in detail. I'll summarise:
1. There is no need to spend the time and money to research giveaway laws in every single country, you can just do it; and
2. If you do it, there is hardly any risk, due to the large series of 'ifs' that have to be jumped through before you even get to being found liable by a court of competent jurisdiction. Let alone the likely minuscule fine that would be levied on you.
It's clear that many similar sites and channels have accepted points 1 and 2 and continue to provide international giveaways to their fans, members, and subscribers.
Macrumors are well within their rights to refrain from doing international giveaways, but I'm pointing out why their fears are so heavily over-estimated.