How is the game making people leave their confort zone? 

OP: The game was bound to top off eventually. It happens to all games. The mission now is user retention going forward.

Also the games still appears to be top dog on the grossing charts all over the world so really it will beat least a while from being as over as people seem to think.   

No, most mobile games peak later, after a longer period of slow growth, and then decrease slowly. Pokemon Go had explosive growth, then peaked less than a month after launch, and is now decreasing faster than most mobile games. Not like every other mobile game, but still expected, because Pokemon Go had a lot of built in popularity through the IP, so it obviously won't follow the curve of most mobile game hits. What remains to be seen is where it'll end up when it stabilizes.

The real test will be the drop-off come winter. Can the game survive when it's pouring with rain and snow and the ground is covered in ice?

Especially after 6 months when peoples interest may already be waning, the changing weather may be the thing to push them over the edge.

But at the Moment Pokemon Go is still doing exceptionally well.

Do you realize this game was actually released on winter in Australia?

Right.
Nice way to talk about 30 million users in a negative way.
Also, Nintendo and the Pokemon guys probably made a ton of money from licensed products just in these few weeks. Stores around here suddenly display and sell all there Pokemon trash that has been lying around for years like Kanto movies, figures and even manga that hasn't been sold around here at all before.

Why do the uber hardcore true and mature gamers on here join the negative talks? Because it's a mobile game?
Show us a "proper" game that sells 45 million copies instantly and still has 30 million active players after a few weeks when all of you hardcore people completed the game twice and let it collect dust or take it to GameStop for the next "proper" game!

Yes... that was release though, people are more likely to ignore bad weather in favour of Joining a newly emerging global cultural phenomenon...

"Especially after 6 months when peoples interest may already be waning, the changing weather may be the thing to push them over the edge."

When the Northern Hemisphere enters winter there's no doubt that there will be a drop off from players, players who have so far have had excellent weather to go out and enjoy the game. Once winter hits activity will go down, the question isn't "if" it's by how much.

Just eye-balling but slightly below 30m.

Its impressive yeah, but unless they add more gameplay mechanics to it, to keep people playing, the thrend is likely to continue.

Just like Goodnightmoon said. It was released in Winter here in Australia. Luckily for us, most parts of Australia doesn't snow. And how there are days that gets REALLY HOT. Right now though it is raining a lot! And still quite cold and windy! 

But somehow I still see lures in parks and places where there are no roof....

Well if the next big updates comes in a few months we will be at advantage since it will be spring and summer!!!! And it doesn't really rain a lot as well! 

Correct. Pokemon Go has suffered a large drop, but these figures are still far above any other app out right now and above other app games at a comparable point in time. On top of that, Go is still at number 4 on the Google Play charts, and it's still the highest grossing app on Android and iOS. It's a bit like when people would see declines in World of Warcraft player numbers. Yes, the drop off is big, but that's because it hit a higher point than any other app game in far less time than other titles took, and even with the drop, it's still enormously successful and ahead of any rival.

If Niantic can start to update the app more regularly, this game could have some serious legs. Given Niantic have struggled with the game's popularity and roll-out, they're going to have a tough time, and Go could well end up fading out fairly rapidly. If Niantic can start adding legendaries, make the most of sponsorship deals, gradually add the news gens, and improve the battling/trading mechanics, then Go could be around for a little while yet.

Pokemon Go is doomed.............or something.