Big no. And before you go "to each their own" or "WELL I'M GONNA DO IT ANYWAY", then what's even the point of this thread? You've already started to piss some off, it's definitely gonna be no good if you decide to do an idea like this.
Bashing Hollywood films that get bashed every day but still make millions upon millions of dollars is so much different than bashing artists who are doing their comics either for fun, for money, or for whatever other reason they have. Last thing I'd want - even if it was out of jest - to see some guy strut about listing off faults with my comic, because then the COMMUNITY gets involved with it, and then eventually everyone just starts noticing the faults in the comics as they read more and more, and eventually give up. That's what I see happening. That's another difference between a Hollywood film and a webcomic - the film has finished, most people have seen it by the time they're watching the sins, so it's funny to go back and see what silly things they missed. Most webcomics are not finished - you've now put that air of "let's find what's wrong today!" into the readers' minds and they'll only read the webcomics to find what's wrong with it, which is not the intended purpose of reading a webcomic.
And trust me, once you get one reader going on it, you've got a whole bandwagon of them going on it. It's happened to me before, it's unpleasant, and really disheartening.
We've got a great community here at Tapastic and a lot of people - myself included - are pretty damn thankful that there aren't any toxic people in it that go after creators just to be mean or trolls or whatever. I highly doubt anyone would give you their permission to do that sorta thing (and you'd need their permission. No if's, and's, or but's about it).
So no. Big, big, BIG no. Don't even bother replying to this if you're just gonna say something like "WELL DURHUR GONNA DO IT ANYWAY", because again, then this whole "feedback" thread as you call it is just a "HEY LOOK AT WHAT I'M GOING TO DO AND YOU CAN'T DO ANYTHING ABOUT IT, HUEHUEHUE" thread. In which case, you're not gonna last long here.