I don't play support at all, but...I think you are having trouble understanding the difference between defending a role and singing out a love song, praising the role. Sure this guy is scoffing and talking his role up. It's more out of a love of it and a mild annoyance at complete tools who think supports are useless. People like all of the egocentric jackasses who post "lol mid here I R beter than uuu", and people like you who contribute nothing to the thread. Not even a well thought out or written rebuttal, or questioning their logic.
Instead, you toss out a sad attempt at an insult which more makes you look childish. **** off.
To the OP: well done. Makes me want to actually try support out instead of being forced into it from time to time. Any favorites you can recommend, other than the ones always seen or banned? I want to branch out and experiment.
I enjoy playing supports that I have the most fun with. For whatever reason, I was never a huge fan of the original "big 3" (sona/soraka/janna), even though they're all fantastic in their own way. I prefer more active supports where I can really get in your face and knock you around a bit. My current favorites are Ali, Nunu, and Lulu. Lulu is probably my top favorite; there's just so much you can do with her!