You're saying they're not showing up in this thread and therefore they don't exist? For info, there have have been many important expansions, most conspicuously by Grom and Torval, where vast amounts of work were done but no Cmdrs were seen. In the case of Grom, they can hold a week's worth of merits and drop them 5 minutes before cycle end. So you have basically no measure of how much they've done (and thus how much you have to do to oppose), and because they can't be instanced, no way of placing those merits (which are lost on ship destruction) at risk, so they can be safely held all week, regardless of how astronomical the number of merits held. That's a huge advantage, conferred purely by being un-instanceable.
Grom had something like 4 highly profitable expansions last year, taken most if not all from space vacated by Hudson following a large 5C attack (itself launched by an army of invisible fortification haulers).