Why does PPRuNe hate ********.com?

[India Four Two]

When trying to post a URL today, I see the old PPRuNe censorship is still live and well:

https://johnkshelton.********.com/20...mitchells.html

Is there a commercial reason for this or is it just a hangover from the days of the Land Rover/Trabant joke?

[PPRuNe Towers]

Keeps the self publicists in check.

Rob