This extension is awesome and really helps manage resource usage by tons of open tabs. However, it is missing one feature that looks like a lot of other people would like to see as well, and that is an option to prevent auto-reloading of discarded tabs when you click on them.
With The Great Suspender on Chrome, I frequently cycle through my discarded tabs to see which one I want to reload, then simply click on the page to reload it. That extension also provides the ability to show screenshots of the content in the discarded tab to help make identification of discarded tabs easier. Using that same routine with this extension will reload all your discarded tabs, which of course eliminates any benefit you get from using the tab in the first place.
Other than that missing feature this is a great auto-suspender extension!