woah, wait a second. I just realized something about this list and what it's intent might have been. What if the intent was so that each of these "read teams" could be affected by mafia opinion? Let me explain what I mean in detail...
Let's say that the players of the game follow along with Blarg's proposed plan. The selected teams, presumably chosen at random, give reads on the chosen players. The actual players chosen to be read are not of note, because we can WIFOM about that all day and it's unlikely we'll find anything there, but the intent was not necessarily to portray a specific kind of player in any way - it was to control the way players were read. As such, what you essentially have is the scum sprinkled across these "read teams," where (coupled with a town player) they can give a perspective on the players they are reading. This can be either positive to bolster the receiving players' position in the game or to cast doubt on them.
But the effectiveness of this approach is not the takeaway here. The takeaway is the pairings and how this would be best accomplished. If you wanted to spread out this or a similar tactic to the most players possible, then, as a scum player, the way your pairings are made up should not be completely random. The scum should each be on a read team with a town player, so that whatever the town player says, the scum player can push a supporting or differing narrative on. Moreover, it would just be too suspicious if the scum were partnered with each other, because we could look back at this list and say "oh yeah, Blarg and Swamped teamed up to screw these two players over."
The evidence to support this is right there, even - I'm partnered with Swamped. Blarg is partnered with SexyFish.
What I'm saying is, this list is mutually exclusive. No two people in the same team can be scum, I believe.
I'm not saying this is 100% true, but it's a totally believable assertion. What's important to note, though, is that whatever Blarg was thinking when he created this approach was not the product of just his own line of thinking - he had 4 or 5 heads contributing to whatever this is. Whatever it actually is, this was created in a very deliberate way.