When you find an "item on hub.safe.com - you should be able to discuss this in the knowledge center in its own folder. For instance autocreate /WebConnections/Github as a "product"/"folder" on knowledgebase to dicuss enhancements that can be done on that particular FME hub item. Also it would be nice to pubish everything on FME Hub on github. So anyone with a github-account can upload a new version of that transformer. The goal here is to get many users to contribute to improve errors and features for Custom Transformers / Webconnections etc.
