I think semi-hydroponics is, in a way, kind of like Arch Linux, veganism, and CrossFit. The adherents tend to believe in it so much that they want to spread the awesomeness - sometimes to the annoyance of the mainstream.
I started experimenting with semi-hydro with a few grocery store Phalaenopsis orchids waaaaaay back in 2017. It went well and I eventually converted all of my appropriate orchids last spring. It has gone really well.
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