[Resubmitting] Settling is the worst thing to do if the patent is bogus. You become a target for others, and you bankroll the troll to go after others.
I was involved in an infringement case. The troll had scammed the PTO into granting a patent that allegedly covered technology I had developed some years earlier. They claimed infringment against my employer's product which used my technology. The legal case was mishandled and we lost at trial. Years went by with appeal, and a limited retrial was scheduled. Meanwhile we wrangled with the PTO over invalidating the patent. They did not want to make a decision. Finally, when the retrial date was imminent, we were on the verge of invalidating the patent. The company decided that given the limitations on the retrial, it would be better to settle. The settlement was 10% of what they had been demanding, presumably because of the likely invalidation. As part of the settlement, the company agreed to withdraw the interference.
I hated the settlement, but it wasn't my decision.
The troll now still has a bogus patent and is suing a whole lot of tech companies.