mIRC block comment terminator behavior

Valid:
  /* comment
  */

Multi-line with trailing text
Unorthodoxed; 'text' is considered part of comment
  /* comment
  */ text

Multi-line with trailing text after pipe
Unorthodoxed; '| text' is considered part of comment
  /* comment
  */ | text

Proceeded by a pipe
Unorthodoxed: Starts the block comment but terminates at EOL
  command | /* comment

Single line
Invalid: Doesn't terminate the comment
  /* comment */

Leading text with whitespace
Invalid: Doesn't terminate the comment
  /* comment
  text */

Leading text without whitespace
Invalid: Doesn't terminate the comment
  /* comment
  text*/

Proceeded by command
Invalid: Not recognized as a comment
  command /* comment
  */