Sooo... let me get this straight... you " deduce " that Vinny has this whole masterplan... fucks up the DIK mansion frames the DIKless gang BUT is in fact incapable to sneak in just as easily into the idiots " mansion " and grab the rubber cocks ( for his leisure
) ? 
Mel & Sarah have been working hard at keeping Chad's thing a secret, doesn't seem likely they'd risk outing him like that, or upsetting him that much.
Okay, I may see conspiracies everywhere, but Sarah is not a saint. She knew about Chad and refused to tell Sage the truth so the breakup wouldn't backfire on her, she refrained Melanie from trying to fix the situation. And why did she take a picture of the main character enjoying the gloryhole if not to use it later? One can doubt the sincerity of this character.
There's the first attack on the Dik mansion, after that the DIK's have them. They attack the Jocks when they think the HOT's are there and then the dildo's are back again in the Jock mansion. The DIK's go to the Preps after that and that ends with inside rain and wet HOT's. After that they return to the mansion and find it demolished.... But there's no dildo's! So no proof the Jocks did that attack and that makes sense since they allready were on thin ice before the DIK's attacked them with the dildo's.
no ... look that in addition to the writing on the walls there are also again the dildos around
Sarah is definitely no Saint, she enjoys messing with people (Ashley, Maya, MC etc.). But I think that's all for shits & giggles, just like taking photos of the MC. She likes embarrassing people, rather than wreck their lives.
Hmm, yes indeed there's 3 of them in that open closet and the DIK's even mention the dildo's to conclude it's the Jocks.
They are under suspicion of drug use.. They have eyes on them them and would be risking everything by exposing what they did.
My thinking is that Melanie is Troy's sister or something and that is why she was on in in chads relationship with troy so she was simply betraying sage by knowing but why else would she keep the secret for Chad if it wasn't for her brother or someone close to her. It doesn't seem like Chad has to close a tie to Melanie so I'm thinking her connection is with troy who she actually looks allot alike.
Some party at the HOT's, Riona and Camilla there so you might trace it with the Gallery unlocker or one of the walkthroughs.
She takes the picture to send to the two sluts to have them come in and work MC's junk. She takes a picture of his dik and tells the sluts put your mouth where your mouth is so to speak and then they come and do so.
I'm not saying your conclusion is wrong but there is also a TAG left by the tri-alpha's that i believe Quinn points out if you grab her punched in the face scene. She says so the tri alpha's really fucked up the place huh. MC is like how'd you know. She points to the Try alpha's logo painted on the wall.
MC still had his old hairstyle so we know the interlude starts before Zoey left him.
