State informants are some of the lowest of the low. Before becoming informants many are participants in crime rings (real crime rings, not anti-state activists). After becoming informants they continues their participation in their crime rings and they snitch on their fellows. Sometimes this cycle of subterfuge leads to hilarity:
For much of 2011, Icelandic then-teenager and self-described hacker Sigurdur Thordarson worked as both a WikiLeaks volunteer and an FBI informant.
[…]
In an instant message conversation with Thordarson Thursday, I asked him what he might have given to the FBI that could be relevant to its investigation, and he responded immediately with a log of an instant message conversation between himself and the member of the LulzSec hacker group known as Sabu, which he says he gave to the FBI and which he claims shows “that information was passed on from LulzSec that later got published by WikiLeaks.” Thordarson told me he believes the log supports a “conspiracy” charge against Julian Assange or others in WikiLeaks.
[…]
More interesting, or at least more humorous, is the fact that the chat log represents a conversation between two FBI informants, both of whom seem to be trying to lure the other into providing evidence they can turn over to their law enforcement handlers–or even into a meeting that could lead to the other’s arrest. Sabu, also known as Hector Xavier Monsegur, had agreed to work as an FBI mole within LulzSec months before his conversation with Thordarson.
It’s always nice to see informants wasting their energy on trying to turn in fellow informants. There truly is no honor among thieves.