micintexp, who is allowed to say what is not decided by you, Quazignrlnose is allowed to say whatever he/she wants as long as it's not offensive or off-topic, etc.
If you feel that someone's post is offensive or shouldn't have been posted, please use the report function of the forum, and us mods will take care of it.
Also you're misunderstanding what he's trying to tell you. You're using a 1 pixel wide brush (or pencil, or whatever you'd like to call it) to draw outlines of your tree, and then you fill it in.
He's suggesting that you draw the tree as a solid shape, so that instead of having one color for the outline and one for the filling, you use one color for all of it when you draw the shape, after that you can add more colors.
The problem with your latest tree is that the small branches still vary much in size, and the problem might be because it's hard to draw the shapes right from the beginning if you're starting with the outline.
Thus I really agree with nose, he meant to use a WIDER brush (and use the pencil tool) not to use any special kinds of brushes. Please try to use a wider brush and draw the shape of the tree before continuing. You're showing good progress, please continue to work hard.
Also be nice to the people trying to help you, don't take out your frustration on them.
Aaalso QuaziGNRLnose, try to be a little more polite when offering critique, since it's probably better recieved if not coated in your own frustration, kay? : D