More often than not I need to elaborate my question put up on Stack Overflow with a custom sketch, UML class diagram, flow chart...
It is in these times I have to open up a custom paint software, factor out some diagrams, export it as a Image, attach it to SO.
I wouldn't know how complicated it is to invest in having such a sketching or drawing tool integrated,
It could even be a basic pen stripped off all the advanced features leaving it a bare minimum.
Such a tool if incorporated into the Stack Overflow "ask question" UI would be certainly helpful.
EDIT: As of Today this Question has been visited around 170 times and 7 answers,
This was meant to be the voice of SO users...
Would you need a Drawing Tool for you on the SO site, would it help you to express you questions and answers better?
Sadly, only 2 or 3 answers are in the context of the question.
The bounty was meant to be a bait and even that ends tomorrow... hope you'll get the will and the zest to comment on this question today and in the future...