To answer your tag question, people who are on Fluther, and thus one who fluthers, are generally known as Flutherites, or Jellies if you’re being casual.
To answer your actual question, I tend to be on here during work hours. So long as I get my work done, which I do, my boss doesn’t care if I browse sites. This is the way it should be.
I Fluther during the day before I go to work and then sometimes a little late at night when I get home from work. But usually there aren’t as many people on that late.