No, Ubisoft isn't banning players for asking about Splinter Cell: Blacklist's broken servers.
Yesterday on November 25, Kotaku reported that Ubisoft would begin banning players if they submitted support tickets about the online status of Splinter Cell: Blacklist. The servers of Blacklist have been broken for a fair while now, and a thread that pertained to have been written by a Ubisoft staff member warned players that they would be permanently banned from the publisher's forums if they entered
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