Does smoke really help in gm?

So almost every gm game i play, there r those ppl that smoke the sites or just throw their smoke bombs at random places. I tell them to stop smoking, cuz it blocks my view and makes my fps drop a little. But they always reply, "No! the smoke helps me see the ghost better". I no that the smoke can help you see ghosts better, but is it a advantage? Cuz normally the ghosts that are dumb enough to go in smoe dont no hwo to b hop, so u basicly dont ned the smoke to c them. And the ones that can b hop r smart and will go around the smoke. So to me the smoke doesnt really help, and the smoke has many disadvantages:

1)makes ur fps drop
2) blocks ur view
3) ghosts can use it as cover while they run to the sites.

But this is just my opinion.
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