Perhaps my proposal could be modified somewhat.
The difference between potentially libelous statements and opinions are small. Truth is a defense to a libel lawsuit.
Many forum members, I fear will make potentially libelous statements in the sub you describe. Many forum members also very much value their privacy, but I do not doubt that Theymos has information that could lead to someone learning many forum members IRL identity with additional information, for example after talking to the persons ISP. This is important because the forum could be subjected to court actions involving the disclosure of this type of information to CSW, and this may lead to the doxing of forum members who wish to remain anonymous via court filings. The forum could fight these court actions, as can the forum member who may hypothetically CSW may try to identify, but it would be costly and complex for both.
Statements made to a lawyer who represents you are generally protected by attorney client privilege. An attorney who is making statements on behalf of a client can also craft the statements carefully to avoid making the statement potentially libelous, for example by using qualifiers such as “my client believes…”, “based on documents my client has seen…”, “it is the opinion of my client…”, etc. This would reduce the risk that those who find/expose information will be revealed.
Further, once CSW lost once in court, the evidence presented in that case is public information and others subjected to similar court actions can easily use that information.
The above is in addition to my very serious concerns about the forum taking a stance on issues related to CSW. While it is my personal belief that CSW is a fraudster, and I believe this is a reasonable belief, i would rather the forum not take this position as an institution, and I feel like creating this sub would be taking this stance.