From the Board Posting Rules:

ADB, Inc. and its webmaster reserve the right without warning to reorganize the board for better efficiency, close or consolidate topics, to archive unused topics, and to make other changes needed for its effective operation. We will not, generally speaking, shut down a debate in progress; see #7 above. While ADB, Inc. and its webmaster reserve the right to delete any message that violates the rules or is found to be offensive, this is done as little as possible and only when clear violations or necessity is present. (We also reserve the right to delete messages that are off-topic, garbled, overly formatted to the point of being an eyesore, or duplicates of other messages. Limited cross posting for good and noble purpose(s) is allowed on a case-by-case basis.) A special Q&A topic will be set up and managed by special rules (i.e., only Steve Petrick and his designated assistants can answer questions); others who try to answer questions will have their messages deleted and be warned to follow the rules.

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Spamming multiple topics with ads for a convention just isn't cool, especially when we are running short on posting space. (Our hosting company capped the board size at 200,000 posts and would prefer we didn't go over 180,000.) Putting convention news in tournament news is off topic and therefore will be deleted as the information is in the convention topic. We will also add it to Hailing Frequencies to get it more publicity.