Concerning your classification of Souta as a member/associate of Aogiri, this is a misunderstanding of the information.
He was never associated with Aogiri itself, but rather maintained contact with Dr. Kanou. It does not count as a formal association between him and the group itself, as it was a side-deal done without involvement of the organization.
How is it false? Shikorae abandoned Roma so he is not an associate of hers anymore and Eto mentioned in Chapter 66 of Re: that Souta was the one who informed Aogiri about the transport of his body so they could steal it.
Shikorae running off in that one instance doesn't necessarily mean an end to all association between them. In truth, we really don't know a lot about their involvement other than them knowing each other. (Roma seemed to consider that typical of him, and he's also run off in other instances as well.)
Again, Furuta is not an associate of Aogiri as the connection was through his personal dealings with Dr. Kanou. Not Aogiri itself, which took the corpses as part of their deal with Kanou. It was in fact not something known to anyone else, as Eto had to find it out on her own.
That makes sense since the Clowns operate in loose association until now. Their cooperation is great but camraderie is not a strong point.
Souta is stated to be a member of the Washuu Clan even if he is a branch member so it should be listed as an affiliation just like his others. The manga has mentioned it and it has been discussed by characters so it should not be considered an assumption.
He should not be listed as an associate of Aogiri....because he was not an associate. We classify an Associate as someone that is not formally a member, but has dealings with the organization. For example, Nico being included in Aogiri's business in spite of not being a member and Chie working for Kaneki's group.
Furuta wasn't working with or for Aogiri. He merely gave information to Dr. Kanou, who then gave the information to Aogiri and had them get him the bodies. But Furuta was not involved with the organization, and had no contact with its members.
Immediately stop spamming additions of the "CCG Members" category or I will ban you. It's utterly unnecessary, the characters are already contained in this category via "CCG Members" -> "Investigators" -> "Ghoul Investigators".
I'm also going to ask you to please give Highermind some space, as it seems the two of you get into arguments and take over threads every single time. Please refrain from picking fights with each other for a while?
You can comment, but please refrain from picking fights. If Highermind starts it, just leave it be or report it to admins if things get out of hand. It's obvious you two don't get along, so it's better not to get into it again and again.