You can trust them, although when you send them your picture, it's not for certain they will use it. They approached me once a couple of years ago for an article about Aeroflot. My picture was selected as a candidate for the cover with 2 other contestants. I sent the picture and then they chose one of the others. I understand that they need to see it at 100% size to make a quality judgement.
Anyway... No money, but they do have my picture (unless the deleted it, which I doubt).
So if anyone ever sees (or has seen) this picture in FlugRevue, please contact me.
I will send them an invoice!
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Photo © Eduard Brantjes