Their trademark policy is down out destructive. How can an agency expand with just generic everyday crap? impossible. Fair enough if any trademak show but if not ( well known car brands ) let it pass for petes sake. No one is going to sue the pants off anybody.
In that case you cant even shoot an airplane? since the plane model itself is patented. Think about that one.
I think you've got it. The plane, the paint scheme, the logos, anything made by humans in the background.
If someone can claim a whole friggin mountain in Australia and by the way people here support that, (Ayers Rock) what do you expect.
Everything ever made by man, is copyrighted, protected, trademarked, or somehow up for litigation if used in a photo. And in some minds, the private people onw God's own work like valley's, mountains and trees. It's absurd!
Back to the running scared thread, that agencies are rejecting things that they should not. It's not over. The problem is getting worse because of fractured legal advise.
Might as well get into the day of the week thing. Doesn't anyone remember some people claiming that sending things in for review on certain days at special times, would get them reviewed at the best possible placement for more views and sale.

Like someone really knows how the flow and process works and can play it to their advantage for better sales. Is it that complicated? I think it's trite and frivolous.
Rejections are what they are. Sure there's the luck of the draw sometimes, but lets face it. Micro has become an absurd caricature of imaging. They don't want good or artistic photos, they want "stock photos" that means pictures and images that match the general pool of their concept of "suitable for stock". It's like a huge bad joke that will collapse on itself. The collections are too bloated with similar images, copies of the best sellers because of people who just want to steal concepts and get a piece of the pie. It's over! The days of micro and crowdsourcing have died. It's been dead of about a year, but no one will get beyond denial.
Read the messages, read the sales complaints, read the commission changes, drops in income and sales... and everything that has been going one for the last year. Wake UP, it's over!