As per a recent comment this thread is meant to voice contrarian opinions, that is anything this community tends not to agree with. Thus I ask you to post your contrarian views and upvote anything you do not agree with based on personal beliefs. Spam and trolling still needs to be downvoted.
Meta
I think LW is already too biased towards contrarian ideas - we don't need to encourage them more with threads like this.
I think this thread is for opinions that are contrarian relative to LW, and not to the mainstream.
e.g. my opinion on open borders is something that a great majority of people share but is contrarian here, shown by the fact that as of the time of writing it is currently tied for highest-voted in the thread.