Suggestion: weekly "post your startup/project" aggregate threads

Instead of peoples' new startups/projects or project milestones being independent little "show HN" posts that inevitably get lost in the noise, maybe there should be a weekly thread (Mondays? Fridays?) that is bumped up to the top for a day where everyone can post their new work and major announcements. A sort of "what did HN users release this week?" thread.