I don't know how well capitalized Glen Carner is in taking up the mantle on these HAN lawsuits. But I am willing to bet, like the P2P/Bittorrent lawsuits, the HAN lawsuits is really designed to force a settlement, not to "go all the way".
It is likely that Glen Carner puts out relatively little money upfront except for the court filing fees and the lawyer "donates" his time to preparing the complaint. If and when a settlement happens, they split it 60/40 or whatever.
The defendants and their counsel need to be smart and insightful enough to see past the facade.
The fastest way to turn a lawsuit against you into an asset and a legal weapon is to file a counter-suit. Once that happens, the plaintiff cannot back out even if they want to drop out on their side.
But the defendants have to be informed, smart, aggressive, and courageous enough to take that tact.