Background: I commented on a possibly dangerous command in an answer to 

https://askubuntu.com/questions/310358/no-such-file-or-directory-error-when-trying-to-use-chmod/310364#310364

The answer was removed subsequently - Now I was curious and looked into the time line (https://askubuntu.com/posts/310358/timeline) - and found no trace
![enter image description here][1]


  [1]: https://i.sstatic.net/5vWUK.png