Almost as scary as the predators who troll DSW on a Saturday afternoon.

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But both Match.com and Yahoo have been accused of placing bogus profiles to keep subscribers. (The companies say the claims are baseless.) And many young urban hipsters are choosing to troll for dates on free social networking sites like MySpace.com.

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It also occurs when a company simply transfers patents on its own to a troll.

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This story seems to me to be almost the inverse of the much more disturbing tale of Violentacrez, the Reddit uber-troll who was outed by Adrian Chen on Gawker last week.

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Back in July when I first drove the Model S, I had no idea Team Tesla was watching my troll through the streets of Manhattan and on the West Side Highway.

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Thieves have been known to troll stores, writing down the redemption codes or registration numbers on cards, then registering the cards and draining them of cash.

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They buy names of people who have entered contests like sweepstakes, and troll for the isolated and lonely ones who will talk to someone on the phone.

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For perhaps the first time in U.S. corporate history, stockholders of a public company will vote on May 23 on whether to turn a technology innovator into a patent troll.

FORBES: Don't Turn My Company Into A Patent Troll!

The term "patent troll" describes firms that acquire patents so that they can later extract settlements from companies on infringement claims.

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For the end user, this means that when you plug the USB stick into your TV, the streaming copy of Troll 2 you just rented from Amazon (for instance) will appear as a file that you can click on and play, as if it was locally stored.

ENGADGET