Anti duplicate content mod

[postcd]

Hello,

i need mod which will auto-moderate posts of newbie users.

Like they post and post goes to be moderated.

In moderation. This VB mod will check random part of the post (at least 10 words) of the post against Google Search results (exact match)

"Some sentence here. And next"

If match found at other website, post is deleted as duplicate content.

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maybe another measures like so member is not allowed to post another content when more than X duplicates found. (like temporary ban with message)