comment vs posting

comment

noun
  • The act of commenting. 

  • A remark embedded in source code in such a way that it will be ignored by the compiler or interpreter, typically to help people to understand the code. 

  • The part of a sentence that provides new information regarding the current theme. 

  • A spoken or written remark. 

verb
  • To make remarks or notes. 

  • To insert comments into (source code). 

  • To comment out (code); to disable by converting into a comment. 

  • To remark. 

posting

noun
  • The action of the verb to post. 

  • The place where a soldier or airman is posted for duty; the time spent there. 

  • A message posted to a computerized bulletin board, a newsgroup, a blog, etc. 

  • An item inserted into a register, ledger or diary. 

How often have the words comment and posting occurred in a corpus of books? (source: Google Ngram Viewer )