Deletion of Berlin Debating Union

Comment: Please don't miss-understand the point about '''debating unions for multiple institutions''' - I only checked three unions - Oxford Union, University of Manchester Students' Union#Manchester Debating Union|Manchester Debating Union and Cambridge Union (I could not see it confirmed about Cambridge Union aloowing members from outside Cambridge Uni) so please do not assume they are the only three. My overall point is that I don't even think their '''claims''' to notability meet  and without  we have no way of knowing
Stance: comment
Cited policy: Wikipedia:Notability (WP:GNG||WP:RS)