Come to complain about anything you do not like about the process of matching data to Wikidata with OpenRefine!
This aspect of OpenRefine is suitable for quick incremental improvements. I will help people get more familiar with the code base if needed.
Example of relevant issues:
https://github.com/OpenRefine/OpenRefine/issues?q=is:issue+is:open+label:reconciliation
https://github.com/wetneb/openrefine-wikidata/issues