I believe the point of this is that it is encouraging going to 'hostile' message boards. To use an example, a pro-abortion poster would consider Free Republic a 'hostile' message board for them, and we all would consider someone who is pro-abort a troll. Their coming here to 'debate' the merits of abortion would be trolling here.
For this particular issue, however, FR wouldn't be a 'hostile' board because we have people on all sides of the crevo debate based on some recent freeper polls that were posted.
Why would a person arguing the pro-abortion side here be considered a “troll”, unless they were hiding their purpose and pretending to be something they were not?
Surely, there must be some limited-government conservative freeper here who also happens to be on the wrong side of the abortion debate.