Why the return of Trotskyite and Lenist "Cults" ?

I haven't been checking in here lately, but I just came across the thread about my deleted post at DU sort of making fun of the implosion of PI.
But I think there is a bigger issue here: Why have the tactics of Leninist and Trotskyite cults returned to the left sphere?
By Leninist and Trotskyite, I don't mean people who actually follow the political economy of either of those thinkers. I am referring to certain tactics adopted by Leninst and Trotskyite parties in the US in the 1930s -- tactics that had little use for voting and democracy within parties, that prized effective propoganda over information, that emphasized cult-like obedience to "party lines -- and that were so revolting to the left, that they eventually gave rise to the "anti-communist left" including "anti-communist socialists."
From the spamming of DU with WorldSocialistWebSite nonsense to the demise of PI, it looks like a replay of the 70s when hundreds, if not thousands, of young progressives were recruited into political cults that differed little from Rev. Moon's Church or Scientology.
As I asked on DU recently, why are self-proclaimed "socialists" showing up who seem to subscribe to the WSWS cult, but few subscribe to America's largest socialist organization, Democratic Socialists of America?
http://www.democraticunderground.com/di ... id=6653365
Why are people mindlessly repeating WSWS propoganda, even though it has been conclusively demonstrated that WSWS is owned by a wealth corporate CEO who's been running a cult for years that has never once had an internal election, or opened an office, and that sees its main goal as disrupting unions and strikes and attacking Democratic Socialists, Democrats, Greens, British Labour and other left of center parties?
http://www.democraticunderground.com/di ... id=6561071
But I think there is a bigger issue here: Why have the tactics of Leninist and Trotskyite cults returned to the left sphere?
By Leninist and Trotskyite, I don't mean people who actually follow the political economy of either of those thinkers. I am referring to certain tactics adopted by Leninst and Trotskyite parties in the US in the 1930s -- tactics that had little use for voting and democracy within parties, that prized effective propoganda over information, that emphasized cult-like obedience to "party lines -- and that were so revolting to the left, that they eventually gave rise to the "anti-communist left" including "anti-communist socialists."
From the spamming of DU with WorldSocialistWebSite nonsense to the demise of PI, it looks like a replay of the 70s when hundreds, if not thousands, of young progressives were recruited into political cults that differed little from Rev. Moon's Church or Scientology.
As I asked on DU recently, why are self-proclaimed "socialists" showing up who seem to subscribe to the WSWS cult, but few subscribe to America's largest socialist organization, Democratic Socialists of America?
http://www.democraticunderground.com/di ... id=6653365
Why are people mindlessly repeating WSWS propoganda, even though it has been conclusively demonstrated that WSWS is owned by a wealth corporate CEO who's been running a cult for years that has never once had an internal election, or opened an office, and that sees its main goal as disrupting unions and strikes and attacking Democratic Socialists, Democrats, Greens, British Labour and other left of center parties?
http://www.democraticunderground.com/di ... id=6561071