As as for attitude... wow, that would be the pot calling the kettle, now, wouldn't it?
To be fair, your initial reply was very snarky and came across as a bit demeaning to someone trying to be helpful and improve SMF, which set the tone for the thread. =P
I know i interpreted that first reply as implying they were stupid. I know SMF is free but there is already a reputation on this board that feedback draws flaming, maybe a little customer finesse is something to think about as the best source of feedback is from the people who use the product and they only want to make it better. Treating them as stupid or as hostile is only going to garner a bad reputation and push people away from the product.
Maybe that wasnt the intent but text doesn't convey emotion or tone very well and I'm sure I'm not the only one who read it like that.