editing edits on wiki improve by evolution only the best survives they become best by change after change after change i find i make two kinds of edits ones which add content and ones which improve language i fancy i am quite good at writing smooth prose but very often it is not possible to do this immediately if i have a fact to insert or point to make the primary thing is to make or insert it then someone else can smooth it along or i may do so myself when i have more time or after leaving the piece and re reading it it can be quite difficult to write good prose in one go because you do not spot your mistakes as to our last exchange in severus snape yes i agree i put in a clumsy statement but i was trying to express a particular point you improved the flow but slightly altered my point i changed it again back a little to my original intention though you also added something cheers