Would also help if the list of participating rights holders (and their works) was published so Joe Public can avoid the warning rather than get ambushed.

Unless preference shareholders are expressly granted participating rights they are unlikely to be entitled to share in any way in the 'equity' or to have voting rights except in narrowly prescribed circumstances.

While he was in exile he was informed that in June 1971 his friend and participating rights activist Nadezhda Pavlovna Yemel'kin was arrested for demonstrating alone on Pushkin Square holding up a banner "Freedom to Political Prisoners in the USSR."