Nobody likes them. Always hiding under bridges and eating sheep. If that weren't bad enough, they also like to acquire generic and incredibly broad patents and spam every business within earshot of infringement in an attempt to collect settlement monies. They typically have nothing to do with the patent they own and often don't make or sell anything. Other than the bridge/sheep thing, they pretty much just try to take advantage of small companies that don't have the bank to fight it out in court.