"I represent the holders of the patents in question" is simple enough. I wonder if it's fraud, if all you're putting out is an unverifiable claim on the net. The pool operators do that all the time.

Someone who has no basis to bring a patent infringement claim selling a settlement of such a claim to an alleged infringer is clearly fraud.

It’s like someone selling a deed to land they don’t own, or leasing a property they don’t own to a tenant.

The point isn't to sell a settlement. It's to publish "oh, we're totally serious that there are patents in our control. We won't tell you which ones, we don't tell you what we want from you. If you're interested, reach out to us."

Few people will even bother to try, and if so, you keep them at a distance with some random bullshit (communication can break down _sooo_ easily), but it certainly poisons the well by adding a layer of FUD to the tech you're targeting with your claims.

Standard fare of patent pool operators, and it's high time to reciprocate.