13 Dec
2016
13 Dec
'16
8:54 a.m.
I imagine that there could be subsets that ignore each other. I saw that on Usenet. Only naive users would see both.
That could happen on open broadcast mediums. Though usually in an unmanaged system / hier the signal gets tired of filtering and moves elsewhere, thus leaving the noise behind where they can keep high fiving their own awesomeness.