I don't know what you've tried, however calling them 'archives' or 'archived threads' may increase contrast with this thread. Finishing with a (somewhat forced

I don't know what you've tried, however calling them 'archives' or 'archived threads' may increase contrast with this thread. Finishing with a (somewhat forced perhaps) positive note may encourage this one eg "I'm looking forwards to today's insights". Then again, this could just be fixating on the little problems!