@hikeronly is correct. Watching is still illegal to ride. I'm not sure why anyone believes the ban on mountain bikes has been lifted. Despite what people want to believe, no matter how much internet bullying people want to exhibit, none of that changes what the reality is.
@KenS has begged people to stop this nonsense. But people don't care about the greater good of biking in NJ. The fact that a local bike shop is openly promoting group rides here is just baffling to me. If the shops won't support what JORBA is doing then who the hell will?
I would say that the content of this thread is very possibly fueling the new signs being hung in the park. Or maybe this is all coincidence. And maybe the smoke emanating from my kitchen has nothing to do with the pot I left on the burner 8 hours ago. But maybe they're related.