What does it mean when a forum says it has multithreading support .

[momohat]

I know this is pretty random and I know this is not multithreading in programming. What does it mean when the forum says it has multithreading support ?
something like this (please see picture).


Can you please give some example where forums have multithreading and where forums don't have ?

 

[Chris Newman]

In BHW that is multi quotes feature.
See :-
https://www.blackhatworld.com/seo/how-to-use-the-multiquote-feature-on-bhw.975670/