Spam is every post or page written with one or more foreign links outgoing of wikidot to a site only for better SEO performance.. or for comercial adsense … if this the only action on wikidot forum or wikis.
Every spammer with only such a post (means without an own wiki with real collaboration) is detected automatically and deleted soon (and the post removed).
This has nothing to do with IP banning - this is another way for admins to stop an anonymous spammer .
A good way is to have a pro account - than it is a little difficult to delete an account and their wikis.. if the content is only a collection of forein links and not an abuse against the Terms of Conditions - the space and storage and traffic are paid then!
And a post with spam is only deleted (removed) .
Hope this makes clear that spamming in Wikidot is senseless and dangerous.