Yes, but WP-Cron Control is quite old and it’s tactics is not needed anymore. Advanced Cron Manager can disable spawning WP Cron on site visit and will give you useful informations about added Server Cron task.
How to Configure Cron Jobs in WordPress
Cron jobs also save creators tremendous amounts of time. Any bloggers who read their comments sections will understand this can be extremely tedious. The worst part is that a reasonably large percentage of comments may actually be spam bots that you are not blocking. You can run plugins to fix this and they can really save you a lot of time rather than doing it manually. The driving force behind these plugins that do repetitive tasks is Cron jobs.