the number is just coming out of one(s) ass so it don't mean much
Ok, but why then people often ask for a total supply of coins when there is an ICO?
I think it's important so people will know if this is going to be a pump and dump coin, some coins or token with huge supply tend to have problem with inflation and this is true token or coin with huge supply cannot go up to 10 sats especially those in billions.