The question mentioned is not offensive or incorrect as far as I can tell and shouldn't be deleted, even if being closed was the correct action (although even that seems wrong to me).
http://salesforce.stackexchange.com/questions/82559/85-code-coverage-yet-upload-fails
It is also linked from the Salesforce Forum which is where I found it and had to look in wayback machine to find the content.
https://developer.salesforce.com/forums/?id=9060G000000IAbLQAW
My reasoning was, that user hadn't logged in for 5 years (2 more now) and is therefore exceedingly unlikely to ever accept or even read any further answers on the post. Additionally, it didn't have any answers with positive votes, nor was it receiving much traffic. The above are not valid reasons to close a post, but seem like acceptable criteria to deem it junk. Deleting junk improves the signal to noise ratio, and getting rid of posts that continually push content off the front page due to pings by the Community bot seems like a way we can improve this site as mods.
