My thread is dead today *sighs* so I'll just stay here and bother you more butter. Cause I love disproving your ideas, muwahahahahaha!
Your idea of a leader showing people how to do something then leading them by example for pictures and stuff is a very good idea, that is in an ideal world. There are many cases where even when someone knows how to "use a knife" properly, they will still use it incorrectly for a multitude of reasons: mistake, peer-pressure, lack of better judgement, lack of maturity, etc.... Also expecting the leader to teach everyone how they should be acting and using things like pictures is a bit overburdening on the leader. He's called a leader because he's supposed to lead, if his job was to educate others he would be called an educator/teacher/professor. The fact of the matter is, no matter how much you prepare for a situation and prepare the ones around you, someone will always do something stupid for god knows why *cough Dolphy cough cough*, so in the end I still stick to the idea that letting pictures count for an entire post is a risky thing to do. Its better just to encourage text post along with the picture up to a certain quality.