System Lists now filter out inactive systems

I recently added a feature which has been suggested frequently.

Now most database searches on Collective2 return systems that have traded recently (depending on the search in question, recently is defined flexibly: sometimes 2 weeks, sometimes 30 days). Thus we now effectively ignore systems that have been “inactive” for a long time.

This should make it easier to find and subscribe to good (and still active) trading systems.

Let me know if you have any feedback regarding the way this has been implemented.