Not exactly. I couldn't be happy with myself if I was displeased with something without voicing my opinion.
That is one possibility. There are several other perfectly reasonable explanations for why this occurs each as valid as the next, whether you accept those rationales is up to you.
*ahem* Wanna correct that?
It is not the picture itself that amuses me, though I will admit the LKP Last Supper picture did tickle me, but the results. I love watching peoples reactions to things. It really tells you quite a bit about the person.
I think you are placing too high a value on how much others value my opinions.
Sometimes yes, sometimes no. It really depends. Typically I will try and respond intelligently, but sometimes I just feel like baiting. When that does happen, I don't deny myself, I indulge.