Basically all of us are good; but sometimes we say something which are intentionally/unintentionally bitter or at least not that sweet; if we take such things on the lighter side and don't take them close to our heart, every thing will run smooth.
Of course i don't think the forum has grown bitter/ unfriendly etc. The only sad thing i found is the lack of responses sometimes... that too cannot be blamed because all of are busy several ways, i know
One more clarification i needs be giving... i comment on most of the images not because of any misunderstanding about my own status in this art... i think every body will be happy to hear some words on his/her works... i just want to share that happiness... I take this as mutual helping

(yes, as already has been pointed out here, a smiley can take away a lot of misunderstandings...so use them profusely.... it is free

)