There are two ways presence are factored into street cred:

1. General Presence - your character's opportunity to RP on sim ... also counts towards special roles like police and factions
2. Job Presence - your character's opportunity to RP within a place-of-work

Over the weekend, I rolled out a new General Presence mod which now equally accounts for your time spend on any CD sim. In the original design, it was specifically limited to Hathian and CU... however, now that presence is much less attributed towards overall street cred (with other better factors introduced a few months ago), you can play on private parcels and other spaces in CD and still get cred for it.

This evolution will also be a big part of a new turf system being architected, as well as the Backwaters expansion project opening soon.