This is a big problem especially in the US, where anarchists will do the FBI’s job for them and believe any accusation, no matter how unsubstantiated, and use it as ammunition against every other group. Very effective way to wreck solidarity and divide and conquer.

Of course some claims are true, and some aren’t, but they need to be investigated and questioned. Most times when you ask for evidence, it never gets beyond “this 3rd party I know said they were bad”. We know the CIA uses these tricks against black separatists, communists, hell even pacifists like MLK, and any group they don’t like, so we have to stay vigilant.