I claim between breaks from watching Netflix and playing dice I can't remember how many times I claim but it's impossible to keep up daily or claim all those 9 BFG daily, I'm not saying it's a waste of time but not worth it if you are in front of the computer just to claim, it's good to claim in between break when you are doing something online.
Nobody can be online 24h a day so claiming 9 BFG daily is impossible and as you say, you shouldn't just stay online just to claim the faucet. But as Toptort mentions, every time you have a break for some reason, it only takes 20s to claim. It is an easy way to gain more BFG tokens.