This seemed true back in 2004 when it was originally posted, but since then Facebook and YouTube have both pursued real name policies (at one point or other) but that doesn't seem to have fixed it. Eg Anti-vaxxers have little qualms on having their names attached to their opinions.

If online discourse is to evolve, merely linking to an irrelevant post from 16 years ago, being presented as gospel, would make for a good case study on why it hasn't evolved.