Stickies lead to 404 error
I was just browsing through the discussions and found that the following "sticky" discussions seem to have been deleted. It is probably not worth having them as sticky any longer.
Overzicht van Uitleg Grammatica (https://www.duolingo.com/comment/2171737)
Instructies voor het bediscussiëren van zinnen / Sentence discussion instructions (https://www.duolingo.com/comment/1386095)
Wat na Duolingo? (https://www.duolingo.com/comment/12690688)
Either that, or something is wrong with my browser.
They are not deleted. There are some bugs with the forums which causes some discussions to give the 404 error for some users but not for others.