I hate to say this, but I feel that this thread doesn't have the "hook" to keep people interested, unlike the thread on James Terry Mitchell. Maybe a further research is needed, give a brief detail on the featured tumblrcows (eg what's wrong with Bleedman).
Ah yeah.
Bleedman, sadly, was a popular artist. His work was so popular in the fandom that its recognized everywhere. He created the PPGD comics that basically popularized crossovers in that area. While he is not Griddles, he is the person that DRAWS the comics themselves. (Much like any designer) However, this is where it gets crappy.
His name is Vinson Ngo and he mashed up every CN show together that he watched at the time and THEN some. This included Samurai Jack, PPG, Courage, Dexter's Lab, and Billy and Mandy* He..is a known pedophile. He had a few "franchises" to mooch from:Sugar bits (which is overly perverted despite being a KID protag), Grim Tales from Down Below, and PPGD.
Bleedman-
"One of my most favorite artist would probably be Oyari Ashito. And If I may caution you most of his works usually involves...little girls as subjects. So if you are easily offended by these kinds of things BACK OFF!!! Yeah...some people might call them sick and weird, and if they think animes aren't sick and weird I dunno what is." (Sounds a bit Chris like, eh?)
Anyway, he had a very...nasty run with DA because he did something (much like Chris) with 9/11. Eventually, Cartoon Network figured out he was using THEIR characters for lots of money and, using insane logic, replicated it and made "Fusion Fall". Doing so made Bleedman upset, but he couldn't do anything about it.
Griddles was Bleedman's accomplice. He colored the pictures and helped him in that way. His name is Matt Gridley. Just like Bleedman, he loved children a bit too much. In fact, he got arrested for Child Porn! (Though, this didn't say it, but he had) http://california.arrests.org/Arrests/Matthew_Gridley_11115885/
I showed the site for stop-griddles, so I really don't need to explain much on him other than he admitted to being a pedophile, he doesn't care, he still supports it. He even did this to a minor online. The only difference being is that he has a girlfriend (or love interest IDK) named "BlossomPPG" from DeviantART. She used to have a tumblr, but I'm not sure if its there still.
"BlossomPPG" is an apologist for everything. She LIKES Griddles and supports him. She'll lie through her teeth and say she isn't with him, but she is (she's moonlitveils). She used to like Sonic and Pokemon mashups and used to draw FNAF characters together. (I can't post it since they are (mostly) NSFW and she stored them) She kept attacking and harassing Griddles' victim for a few reasons. These days, she blames the victim for Zamii. While she (states) that she isn't friends, there have been pictures of the two together AND Griddles repeatedly states that "he has met her IRL".
https://archive.is/rV8hc
https://archive.is/5qMTV
https://archive.is/cqGUq
https://archive.is/K0Lx2
https://archive.is/4PkLd
https://archive.is/5gxDc
https://archive.is/griddles.deviantart.com
https://archive.is/KYZ4W
I actually this (this) picture is staring one AND an adult.. https://encyclopediadramatica.se/File:Breanninwant.jpg
https://encyclopediadramatica.se/File:Bleedpedo!.jpg (I'll archive later)
https://encyclopediadramatica.se/File:Bleed_wantstobangbell.jpg
All of them are STILL online and he's STILL trying to screw little kids.
As for joshjackal...He likes using the pedophile tag on tumblr. He also likes his dick..I didn't want to search further because it just bothered me completely. (I'm not looking that up)
https://archive.is/uipTQ