King Solomon said,
Since Cedar's site is not clear as to it's status (loyal or apostate), many JWs are likely to trust it as a trusted source of JW information.
From what I have read of Cedars' articles he his genuinely trying to appeal to Jehovah's Witnesses to help them awaken to the true nature of the Watchtower Society. Since JW's are conditioned to reject anything that they percieve to be apostate, wouldn't it be counter-productive for him to declare that his site is anti-Watchtower, aposate, or anything similar? That information would trigger most JW's to leave the site, mistakenly thinking they were getting in touch with one of Satan's agents.
I believe his approach at least allows JWs to take in some of the information, which may get them to thinking. Even if they leave the site seeds have been planted, and who knows where that will lead in the future.
I personally find this kind of neutral approach to be more appealing and effective than to set up an 'apostate' barrier that would prevent JWs from reading on.
I also believe that in the long run, more Witnesses will leave the Organization and stop making contributions as a result of articles like his, rather than make more contributions. (But not necessarily in that order; as for me I stopped making contributions long before I left.)