hobby impacts

I'll admit I've lurked in this forum for quite some time. In that time, I've peered into quite a few threads, some, extravagant beyond belief! One thing I like the most about this hobby is the imagery, both fish and corals, and everyone's eagerness to share those beautiful images. ...so like...

At this point in the hobby it seems as though everyone is constantly growing, fragging, and trading their corals. I wonder if anyone has any idea how this impacts the harvesting of wild coral for the hobby? Such as what percentage of hobbyist corals comes from the ocean nowadays and if this...