Send Clowns, you said:
Isn't it a sign of stupidity not to read the rules of the site that relate to personal attacks within posts, or are they too subtle?
However, you were not subject to a personal attack, but rather to an allusion to what you said in your previous post, namely:
Forgive me if I'm being stupid ...
What I suggested was that the point was subtle, but NOT a matter of stupidity. Which brings me back to subtlety ....