3. コピペによるスレッド潰し

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http://potato.2ch.net/test/read.cgi/tvsaloon/1475577719/8-

無意味な単語の羅列による、容量オーバー狙いの荒らしです

もし投稿文字列の置換システムの運用が可能であれば、ですが
・一定のサイズ以上の投稿の時は置換システム発動
・特定の荒らし文字列候補のうちのいくつかが含まれる場合(20個の候補中12個等)
に、全体を置き換えて(最初と最後の一部と(中略)を入れる等で)投稿する、等の対策は取れないものでしょうかね