Troubleshooting
Fragment of a discussion from Talk:Wikilytics
I've got the same errors, but as all these accounts belong to bots, I don't think it is a big loss if they are not stored among the humans.
(I think Diederik is currently making a video on how to replicate the study, so the second problem should be fixable as well...)
Exactly, these are bot edits and are discarded at the moment. The reason is a limitation of Mongo. With Mongo 1.8 this should be resolved so if you are really interested in these edits then I suggest you wait for Mongo 1.8. Else, there is nothing to worry about.