So-called wiki spam is any spam that infects wikis. There is no particular risk profile for it since any wiki that is open to anonymous edits is hit by it, and to require logins doesn't usually help much. If there are less than a few dozen spams per month, it's usually best to avoid changing any of the administrator guidelines just to avoid it - it is easily enough undone.

In tikiwiki it's best to rollback so there is no record of the spam at all, but this should definitely not be used for any other purpose than spam elimination.

More sophisticated spams use page names to advertise and the edit comment appearing in the page history to reinforce the ad. Accordingly only to delete or rollback will get rid of it.

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