Bart,
you can also find answers to some of your questions at
http://www.clacker.ru/ - a new site in Russian affiliated to the old one, bolshoi.net / adagio.ru. As is clear from the name of the site the point of view you will be introduced there is the one of the claque. Well, it's also some information… Natalia, please have a look at it - may be, you will find it possible to give some comments.
They pretend to
help dancers but evidently you will never learn from there about shameful incidents when they
prevented performances. The last one happened two days ago, on Monday, at the performance of La Bayadere with Svetlana Zakharova, Igor Zelensky and Maria Alexandrova as Gamzatti (the ballet was shown in the scope of the opening of the Moscow ballet competition). Just before Alexandrova's variation in the Grand Pas of the 2nd act, when the audience and the orchestra were silent and the ballerina was already standing in preparation, somebody cried out “Oh” - loudly in an unnatural foolish (but already familiar!) manner. This produced a slight, but noticeable wave of laugh in the audience, to which Ms. Alexandrova only smiled back and demonstrated such skills and drive that earned sincere and real, not organized ovation. All this happened in the presence of Mr. Grigorovitch and the members of the jury - Natalia Makarova, Natalia Bessmertnova, Ludmila Semenyaka, Mikhail Lavrovsky, Heinz Spoerli, Alex Ursulyak and others. The only reason for this barbarous behavior is that the claqueurs are just desperate to show their fading importance.
In addition to Mashinka's information: many years ago there was an article in "Pravda" by Irek Mukhamedov against the claque. About three years ago Maria Alexandrova gave two interviews expressing strongly negative opinion concerning the claque's actions what produced the current war with her. This is mentioned by a claqueur himself at the beginning of the article which Natalia couldn't read to the end.