When you spot a fellow forum poster in game

https://i.ytimg.com/vi/GADRmoZZDmc/maxresdefault.jpg

When you get along with them:

http://favoritememes.com/_nw/17/16722218.jpg

When you hate them:

http://www.quickmeme.com/img/e6/e68630c6c39b0672f6ed1af26b33fe179881f8a860ba9da509a57ae29e53a3f7.jpg