RESPECT! (spn wank)
Most of these links came from the many diligent wank_report mousies; I have merely compiled (and maybe editorialized a little).

dodger_winslow makes some icons:

As many of y'all know, me and many of my closest LJ friends have been utterly appalled and deeply outraged at what we see as a growing trend of disrespect for Jensen and Jared as people in the very fandom that professes to adore them for being the genuinely good and generous guys they are.

Some people make responses along the lines of "Chill the fuck out, I can make fun of celebrities all I want and guess what? It won't actually hurt them in any way."

Like affectingly:

Hey, don't appreciate my loving mockery of Jensen Ackles? That's fine. I don't expect everyone to participate in that or to think that's a fun way to express one's love of something. I'm a sarcastic bitch and I'll be the first to admit that. But you don't get to label me or the people who DO think it's funny as bad fans without looking like a complete asshole yourself.

alazysod posts some response icons with text such as "Because this is polite stalking" and "Because nobody likes a Fatty!Jensen"
Among others, ladymirth takes offense and calls alazysod "a jerk with an entitlement complex who just can't WAIT to mock people for having ethics." Comments were deleted in that thread EDIT: alazysod to the rescue! part one and two.

Supposedly (although dodger-winslow has since denied it) this whole thing started as a result of jubjubfest, a community/ficathon "dedicated in loving support of Jensen Ackles and his tendency to be a little soft around the edges." As far as I can tell, this community makes people angry for a couple of reasons: 1. Jensen Ackles is SO NOT FAT OMG. 2. It is a bad idea to fetishize overweight!!! 3. If Jensen found out people were fantasizing about him being chubby, he would be devastated. Or something. It is unclear whether or not anyone thinks that Jensen feels particularly respected by the fact that people write stories about him taking it up the ass from his costar, so long as they do not portray him as fat while doing so.

So anyway, then came the defriendings!
apieceofcake explains why she defriended jelloh0530:

So yes I defriended her ,and her being too much of a Drama Queen for me is the reason I gave. Whilst it may not have been very nice, I am gonna stick by it. It's something I even call one of my girls..because she is..LOL!

smidgy06 responds to being defriended

But seriously, I believe he's gay and I'm not going to make any apologies for this because then it'd appear that I was saying that being gay was wrong and that statement would be stupid and ridiculous.

But wait! Apparently it was not Fat!Jensen that started it all, but "a single, egregious act of inexcusable (from my perspective, at least) disrespect to ... Jared." (Lots of tl;dr in the post and the comments) d-w will not say what this act was, because she does not feel like "opening [herself] up to wank."

winterlive also has some stuff to say about this situation:

"there are fen who don't respect jared and jensen's basic humanity, and that is awful in every concievable way."

"and the end result is a certain select few people standing in the town square, wearing clown costumes and fervently jerking off onto a copy of the season 2 DVDs (aka: the "cool" kids). those left standing around in horrified silence are trying so hard to be polite and fit in that they won't even say, hey, WHAT THE FUCK ARE YOU DOING for fear that, if they speak up, they shall be drummed out of fandomtown forevers."

"and i kind of think, in my deep and secret places, that that sort of thing is gross and retarded and best enjoyed by howler monkeys."

That last one was in response to this icon, which was created (as a joke, in case you hadn't guessed) in response to earlier SPN wanks regarding J. Ackles' flaws as an actor and human being, and has since been used "out of context" throughout this wank.

Ok, that's all I got. Anything I missed?

EDIT: In addition to the response icons mocking the original icons, there was also cran's post of icons pointing out the hypocrisy of requesting respect for the actors, when many of said respect-requesters are filled with hate-fueled glee when one of the female actors does something dumb.

EDIT again: traveller also has some stuff to say about the dangers of Fat!Jensen. And how mocking celebrities is like rape.