I have some plugins that are not only blocking spammers but collecting their IP address so I can create lists of spammers. I use this in my htaccess file.
Recently the plugin reported that WikMedia was scanning my site, probably without a proper request header. It was banned. I don’t think that WikiMedia is a spammer, but why are they scanning my site? I would not expect them to have any reason for accessing my web pages.
Keith