Proper syntax and commenting

I'm not a smart dev.

code/modules/mining/mine_turfs.dm

@@ -6,7 +6,7 @@ var/list/mining_overlay_cache = list()
 	icon = 'icons/turf/walls.dmi'
 	icon_state = "rock-dark"
 	density = 1
-	opacity = 1
+	opacity = 1 // YW edit. Stops all my unsimulated tiles from being seethrough.
 
 /turf/unsimulated/mineral/ice
 	name = "Ice wall"

maps/yw/cryogaia_things.dm

@@ -400,7 +400,7 @@ var/global/list/latejoin_tram   = list()
 		else if(!istype(P.weather_holder.current_weather, /datum/weather/borealis2/blizzard))
 			if(frozen && prob(50))
 				unFreeze()
-
+	return
 /obj/machinery/door/airlock/glass_external/freezable/process()
 	if(world.time >= nextWeatherCheck && !freezing)  //don't do the thing if i'm already doing it.
 		freezing = 1