thank you for explaination, but days ago, I submitted two articles https://news.ycombinator.com/item?id=43435258 https://news.ycombinator.com/item?id=43435258

thank you for explaination, but days ago, I submitted two articles https://news.ycombinator.com/item?id=43435258 https://news.ycombinator.com/item?id=43435258 https://news.ycombinator.com/item?id=43435222 https://news.ycombinator.com/item?id=43435222 discussion sections disappeared in a short time, while older submitions don't have this issue so i guess there're other rules for judging which is discussable and which is not