The reason you have to ask that question proves that moderation is lacking. 

If you want an example go read through comment threads for Boeing. It’s constantly filled with comments of no substance related to the article, non-sequiturs, and childish petulance that look like what you’d find on Facebook. There is almost zero value to comment discord and the voting system should be similar to Reddit. 

*I tried to provide some screenshots but as usual the app is buggy. 

The comment moderation system is atrocious and I’d say about 5% of the comments on any given article are helpful, while the rest are trash. I’ve stopped using StockTwits for the same reason and am about to abandon this app as well.