Russian roulette ? Don't gamble the future of your online business!
The words you choose for important parts of your website matter so much if you want visitors to find your website in search engine searches.
If you guess the words people use to search for your website, you’re gambling with your website traffic (i.e. hits and visitors to your website) so the stakes are very high. Do you really want to take that chance when there's a much easier and more profitable way – keyword research.