Depends on what you mean by “liberal troll”. I’ve been called one a time or two myself ...
... for not believing this economy is as bad as the great depression;
... for not supporting secession or armed revolt;
... for supporting legal immigration;
... for not believing the country is doomed;
... for believing that non-whites can be convinced to vote for a conservative;
... for being optimistic when pessimism reigns.
The term “liberal troll” is thrown around pretty haphazardly around here — as everyone seems to believe that their opinions are the definition of “conservative”.
SnakeDoc