[vijayr]

It's very expensive

That is exactly why biggies like Microsoft should fight it out, because they have boatload of cash at their disposal. Today they pay one troll. This will set a precedent, and soon they'll end up paying more and more trolls. But, if they fight from the beginning, it might deter other trolls. They should be able to justify the cost to their shareholders. After all, they make wrong acquisitions all the time, they overpay for acquisitions, they pay heavy fines for behaving badly etc. The shareholders are still around, aren't they?