I use a few integrations via Zapier (I'm more excited about IFTTT) to send tasks into my inbox for processing. Some of those workflows take the source (for example Pocket) and add in a tag via @reading. This helps me categorize my tasks being collected from various locations into logical groupings.
Right now it seems even when using tags, items still go directly to the inbox, needing to be manually moved into a project. It would be nice if there was a way to use a specific indicator to assign tasks into projects at the time of creation.