stop this nonsense

code/game/gamemodes/dynamic/dynamic.dm

@@ -546,7 +546,7 @@ GLOBAL_VAR_INIT(dynamic_forced_threat_level, -1)
 		return ruleset.cost + added_threat
 	else
 		stack_trace("The starting rule \"[ruleset.name]\" failed to pre_execute.")
-	return 0
+	return FALSE
 
 /// Mainly here to facilitate delayed rulesets. All roundstart rulesets are executed with a timered callback to this proc.
 /datum/game_mode/dynamic/proc/execute_roundstart_rule(sent_rule)

code/game/gamemodes/dynamic/dynamic_rulesets.dm

@@ -115,7 +115,7 @@
 /// Returns how much threat to actually spend in the end.
 /datum/dynamic_ruleset/proc/scale_up(population, max_scale)
 	if (!scaling_cost)
-		return 0
+		return FALSE
 
 	var/antag_fraction = 0
 	for(var/_ruleset in (mode.executed_rules + list(src))) // we care about the antags we *will* assign, too