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I think more then being ignored many just don’t know about it.

1/Or maybe, the issues they see as a problem require a whole new blockchain that offers the good, while excluding the bad, like the flawed governance system? Unfortunately, it's more likely that they want control over their own ecosystem.

2/It's more likely a little of both and other reasons as well. Hive has its good side, but it has plenty of flaws too.

A gold mine hidden in plain view.

Sure. With lots of good stuff, and some others challenging things. As mentioned by some things, like even in this thread.