Terryeo is a well-known Scientologist, yes, but I think this is simply a troll who has strung together pieces of the names of several well-known Scientologists to make their handle. "Lightfield" is obviously a reference to James Lightfield, and "Churilov" must of course be a reference to Greg Churilov, who posts incessantly in defense of Scientology in between visiting areas of the world hit by natural disasters and taking food and shelter from rather than to the locals hurt by the disaster (see http://www.thestandard.com.hk/stdn/std/Weekend/GA22Jp10.html .) I don't recognize "Arkaitz", "Luana1980", or "Chewyanbert", but they probably are known for the same thing as Terryeo, Lightfield and Churilov.