Streamer (goose.art): "prioritize fading out users, as the area is getting very crowded". The 10-minute lifetime from the previous tuning was too slow to clean up during a chatty stream — pets were piling up faster than they aged out. Halved both thresholds: linear opacity fade over 5 minutes, dissolve turbulence kicks in at the 4-minute mark for the last-minute snap. Easy to re-tune later if 5 min is too eager. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>