In this specific case, I believe the users who cast the delete votes felt that the content might do more harm to other people who view the post in the future.
It might get the job done, but it would also add a huge vulnerability. I'm sure your heart was in the right place, you were trying to help the OP... no doubt about that.
Might be an extreme example, but what if someone posted an answer containing code that would perform some "malicious" things - in extreme cases, a downvote might not be enough. We'd want to remove it ASAP as to not let untrained users blindly execute some code they found on Stack Overflow.
Q: How can I ensure that port 21017 is open?
A: sudo service ufw stop
( completely disable the firewall )
It's an answer, it'll work... but it should never be done. period.
root
, I feel that may be the reason.