A certain user is presently in the process of creating tons of new tags and creating tag wiki excerpts with plagiarized content. For example, this suggested edit review, which is an exact copy of this Bioinformatics journal article abstract. Since I do not have 20k rep to roll back the edits and there is no flag for tag wikis, posting on meta seems to be the only course of action I can take.
I'm not going for votes or rep here, I'm just trying to get this "editor" stopped. Most of the suggested edits seem to be getting rejected, but there are quite a few upvotes.
Also, I'm sorry to say that I approved one or two of his edits before getting suspicious and doing a Google search for the exact content in quotes. Now I've used up my 20 suggested edit reviews, and there are plenty more horrible edits to reject.
In the questions here and here (the duplicate flags), there is no mention of plagiarism. This seems like a different issue now. Also, I understand there is the concept of fair use potentially at work here - and I am no expert - but I feel this is blatantly lifting content from various copyrighted sources. This seems to be an instance of a legitimate problem, even though the user appears to have good intentions as the edits are fundamentally useful.
Note: I do not want to imply that the user is an intentional plagiarist. As Tim Post indicated in comments, the user may simply not be aware of the requirement to provide proper attribution for the content - a fair point. The user should be given the benefit of the doubt.