There was the "pay to play" group. They rightly dropped their link. Then came Helene and they used the excuse of "disaster/emergency" to re-activate their toy. From monitoring them, the re-linking, as before, served no useful or legitimate purpose. It just ensured that multiple repeaters across a 75-100 mile stretch were clogged with conversations that sounded like 99% of the time, were taking place on one repeater. As before, one conversation on one repeater rendered multiple repeaters useless while it was in progress. As before, it was poor stewardship of available repeater and frequency resources. But hey, "we are in a disaster/ emergency". It also ensured that some clown playing with DTMF tones was "enjoyed" by all, as were occasional lengthy bursts of white noise in the system. They seem to have finally de-linked, at least until something else can be used as an excuse to re-activate their toy.
Then, there is the more local bunch that was part of a network with a name that sounds like something to do with fuel effeciency. Looking on-line, that network appears to have all but fallen off of the map, yet listening to that system, it sounds apparent that it is still hooked into something and not a stand-alone.