Why I am getting trolls ?

As though Niantic didn't completely map out all of the US's geography through pokemon go.

I can explain this. It's not a joke; it's actually a pretty common witch hunt thing on the Chinese internet. It all started with official anti-spy campaigns that got blown out of proportion by social media. Honestly, I don’t think anyone of them are CIA agents as some people said. I’ve checked out some accounts, and they're just regular folks from China who got a bit paranoid about this whole topic.

What’s funny is that even though they see themselves as protecting national security and fighting spies, there’s another group that thinks they’re the real spies, because Taiwan or the U.S. government doesn’t want normal conversations to happen.

Don't they have Google Earth?

China does not have accurate street level map data available to non-chinese markets. If you go to Google maps or apple maps or even something like openstreetmap and compare the satellite layer against the street layer you'll find there are serious and non-trivial deviations, like entire rivers being moved. This is intentional and China is very serious about protecting its geographic data. I equally suspect that public facing satellite data is heavily augmented.

The worry is that these street level photos contain enough information to, essentially, figure out how China is communicating map level data. Probable ? No. But also why take the risk?

A chinese police account on Red recently posted a video warning citzens about spies and warned of anyone asking for street photos. That's probably why.

They’re joking still messed up tho

Ay, as a Chinese I don’t even know what those guys are thinking about

When they ask u to post military facilities/ weapons, u will be so happy to share

That's interesting. Sharing beautiful photography isn't inherently a problem. However, untrained people can't always tell the difference between sensitive locations and ordinary street scenes that are harmless to share. It's always a good idea to be cautious about posting anything online that reveals too much about your immediate surroundings.

young people joking around with you. they are telling you to relax and dont be so serious