Hi!
I've started looking at a 500K sample from 7/24 across all wikis. I'll have more results tomorrow, but right now it's already clear that someone is spamming useless DOI searches across wikis—and it's 9% of the wiki zero-results queries.
In case it is not some crazy bot, could we detect that it looks like DOI and output something like:
Hey, this looks like DOI. Would you like to check out https://dx.doi.org/$doi ?
better way to let them query that (perhaps wikidata eventually, i wonder how their support is for putting reference material into wikidata).
Wikidata may not be the best for it, as DOIs as I understand are used for documents, and Wikidata is repository of information about things (entities), most of which aren't specific documents. I.e. unless it's related to Wikisources or Wikibooks, we usually wouldn't expect specific document to have an entry on Wikidata.