I wanted to delete LingQs which became known to me. But it is bothersome to delete them one by one. There should be a way by which I can delete known LingQs at one go.
Also what does this ‘watching thread’ tick does? I ticked some threads but I am not getting any notifications or anything. Then what does this do?
@ZelAlex
The delete button! 
That is an advantage only for paying members.
Das ist eine Zusatzfunktion bei Lingq,welche ausschliesslich zahlende Mitglieder nutzen können.
You can delete more LingQs in one go if you become a paying member. It is a feature only available for paying members.
Ich you click “Watching thread” you’ll get an email notification if someone add a post to this thread. Check your setting if they are proper if you do not get emails.
Thank you for telling that.