One thing I often add to my search terms is the site: tag to restrict results to, say stackexchange, reddit, etc... In the past it's been a necessity to get no

One thing I often add to my search terms is the site: tag to restrict results to, say stackexchange, reddit, etc... In the past it's been a necessity to get non-spam results on DuckDuckGo. I'm not sure how needed it still is. Any thoughts?