Looks like a bunch of homeopathy supporters have got sick of not being taken seriously on the internet, and decided that the best way to gain the respect of the wider community is to spam wikipedia until the service is overloaded. I’m not sure whether the intent is just a DoS, or if they think people will just get so tired of reverting their edits that they just roll over and let them have their say. Either way, it’s a stupid plan; the absolute most they’ll achieve is that the pages they target will be locked until they themselves get bored and go away.
In any case, I wonder if the irony of the whole idea is lost on them? Surely the homeopathic way to do this would be to have one person say, very very quietly, what they want on the page, while in the same room as someone who knows someone who knows someone who knows someone who knows someone who is a Wikipedia user.
Hat tip to @xtaldave for the link.