Allowing junglers to take CS. Why and when
Two main things here. Taxing, and taking CS when they are out of lane.
Taxing. Minion taxing is when the jungler ganks and gets some sort of reward. When a jungler ganks and they burn a summoner-2-3 non cannon minions When a jungler ganks and gives the kill 3-5 non cannon minions When a jungler ganks and gets the kill NO MINIONS When a jungler ganks and does not burn a summoner or give a kill NO MINIONS. When a jungler needs an item. they might take a few CS to finish off their warrior or something.
If you let a jungler tax some minions they will most likely try to gank for you more. Remember, they are spending their time to gank for you that they could spend farming.
Taking CS when out of lane. The jungler should be able to take a lanes CS if the laner is dead or recalled. They should not push lane but should only last hit. The laner is only losing the CS they would lose anyway. This is fine.
If a jungler is taking a lot of CS for no reason (a whole wave when they burned no summoners) tell him to stop taxing so much.
DO NOT take CS from a lane that is behind. This will only put them more behind.
I made this post because i am tired of getting pinged and flamed for taking 3 cs after a successful gank or getting flamed for last hitting when the midlaner has died or is roaming ECT.
Take everything i say with a pinch of salt. I am not claiming to know everything and that i am a high elo player or whatever. Just remember this for this in your games and try not to flame your jungler so much for light taxing or last hitting when you are not in lane.