Thanks strix for the great link.   It has been a great help.

The troll above uses a great #3, 9 and 12,  but lots of 9  examples of trolling.... Described In my link below.
 

9. Coordinate with a couple of others to “shout down” reasonable comments. This is especially effective when the posters launch an avalanche of comments in quick succession … the original, reasonable comment gets lost or attacked so much that it is largely lost.  Use “forum sliding” and “topic dilution” to so dilute and distract the conversation that people forget the original point.