The only problem with this as an open-ended declaration, is that his art will fade out of the social conversation much faster. Cartoon images get reposted all the time. In fact, it probably helps drive sales, as some people would be alerted to the comic and then want a book. Like in this topic. But I do agree that a humor/comics oriented site should not just openly repost cartoons without author consent. On membership based forums like this, I would think it shouldn't cause any harm--first because of the viewership is so incredibly small, but also because it doesn't go anywhere else--this site doesn't facilitate embedding on other sites.
i'm usually with you, but physical media is dying
