Why is this profile on top?

Scores are weighted mode × 0.6 + activity × 0.3 + recency × 0.1. Mode match is binary (1 if the profile's primaryMode matches the active mode, else 0) and dominates; activity is the count of inbound ConnectionRequests normalized at 4; recency decays as 1 / (1 + ageDays) from the profile's createdAt.