Ya, what is "V" I might guess he meant "I" but "I" is nowhere near "V" on the keyboard lol.
I used to dose Iodine for the same reason you are, because the bottle said to. Truth is with feeding and and water changes Iodine supplementation is not important. Like above, if you had a tank full of softies then you may need to dose, but iodine is difficult to measure accurately and it is easy to overdose with supplements. I stopped dosing about 9mos ago and have seen no ill effects from stopping.