Not spam per se. More a fairly standard if reasonably well done working from home training scam. Not a vast amount we can do about it. They are probably breaking some kind of trading standard laws but well if those kind of laws were enforced online there would be far fewer pyramid schemes.
The WMF has "Wikipedia" trademarked, doesn't it? It looks like a cut and dried case of trademark infringement to me. Whether it's worth doing anything about isn't up to me, but I reckon something could be done if it was wanted. (If memory serves, you have to actively defend trademarks or risk losing them, although I'm not sure if that applies to this kind of infringement - they aren't calling an encyclopaedia "Wikipedia" so it's not making the name generic.)