Professional what exactly?
(I pay closer attention to graffiti than I used to.)
Dinosaur paleontology is a religious racket. Sure there was lots of megafauna and their were some large flightless birds with various levels of feathering. Like anything though money corrupts and the money behind dinosaurs is huge. Every kid has toys, books, theres movies, TV shows, museums, etc.
Sure, dinos for kids are big money, but there's just a massive amount of proof they existed. The fact that an industry exists monetizing a natural phenomenon doesn't automatically mean the phenomenon doesn't exist. That's the "anything mainstream must be fake" conspiracy theory. Some mainstream things are real. What proof is there for the world being created in seven days besides a single book of stories invented a couple thousand years ago? And by the way, don't parents buy their kids a lot of religious things... way more than dinosaur dolls?
[edit] if I'm just missing the sarcasm here, sorry, it's been a long day.
They have an exposed fossil bearing rockface that you can get very close to, and you can see how the fossils differ from the surrounding stone.
Guessing the orbital mechanics needed to station-keep a signal source at a given apparent sidereal position, far enough from Earth to simulate parallax at infinity, are unworkable.
When the profit motive is removed it becomes harder to track down.