ok ok, I dont know much about legal actions against scanlators or people posting spoilers. But, tbh, I think it is a little bit naive to think that shuheisha or shonen jump don't know who is T. Wiki tells the story this way:
According to a 2009 study conducted by Lee Hye-Kyung of the University of London, Japanese publishers felt that scanlation was "an overseas phenomenon", and no "coordinated action" had taken place against scanlation. Lee stated that a possible explanation for some of the lack of legal action is that scanlation groups always make sure to buy an original copy of the work and generally stop scanlating should the work become liscened.[4]
Historically, copyright holders have not requested scanlators to stop distribution before a work is licensed in the translated language. Thus, scanlators usually feel it is relatively 'safe' to scanlate series which have not been commercially released in their country. Steve Kleckner, a former VP of sales for Tokypop, stated that "Frankly, I find it kind of flattering, not threatening… To be honest, I believe that if the music industry had used downloading and file sharing properly, it would have increased their business, not eaten into it."[10]
However, this view is not necessarily shared among the industry, as some Japanese publishers have threatened scanlation groups with legal action. Since the 1990s, publishers have sent cease and desist letters to various scanlation groups and websites.[11]
Due to manga's popularity steadily increasing in the overseas market, copyright holders felt that scanlators were intruding on their sales and in 2010, a group of 36 Japanese publishers and a number of US publishers banded together to form the Manga Multi-national Anti-Piracy Coalition to "combat" illegal scanlations, especially mentioning scanlation aggregator websites. They have threatened to take legal action against at least thirty, unnamed websites.[12][13]
So far, the coalition has achieved some degree of success. The scanlation aggregator site OneManga, ranked 935 in the entire internet on May 2010 according to a Google listing and top 300 in the United States,[14][13] announced its closure on July 2010 due to their respect towards the displeasure expressed by the publishers. As of August 1, 2010 OneManga officially shut down its online reader.[[I]citation needed]
and spoiler already deleted, Mr Aohige.