[neilk]

Because this is a distraction from your business, and distracting you IS their business. Every hour spent on legal affairs, playing on their turf, weakens you and strengthens them.

Patent trolls have no reputation to ruin, so you can’t shame them by being very public.

Unless this is a particularly outrageous case or you are a very well-known person I doubt you can get much marketing benefit from a public fight.