We have this one-liner rule for specific reasons.
There are plently of forums that have a starting post followed by 50 replies ranging from "I totally agree", "You rock" to "cool".
To avoid this we prefer people to invest a little more time and thought when replying.
In soccer you can't touch the ball with your hands, unless you're the goalie, and when you try to convince them it is perfectly acceptable to do so in some cases, they will most likely tell you to try volleyball.
We here feel the same.