@Jalexander mentioned that there are a lot of log entries on meta that have 127.0.0.1 as their CU IP address, instead of the IP of the user who initiated the job (most or all of the entries are from work that comes from jobs, which use localhost by default).
James would prefer we default to setting up the context based on the request that created the job. Jobs where we're not doing things that log CU data can specifically exclude passing the context to save the overhead, if it's significant.