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What is "flooding"?
Flooding is the act of repeatedly making comments in a single area with the obvious intent of overwhelming a single webpage with your commentary. Flooding can also take the form of filling a single comment or small group of comments with a huge amount of text, again with the obvious intent of overwhelming the page in question and possibly with the intent of causing substantial page load difficulties or browser crashes.
These acts are considered an abuse of the system and may lead to your account being suspended or banned without warning.