I wasn't sure about this when I first installed it, but now that I've gotten used to it it has taken hold of me and I resent its absence. It makes browsing youtube search results and recommendations a lot more relaxing. Now, it's generally nice not to see obnoxious thumbnails, except they do often belong to obnoxious *videos*, which no extension can fix, and the replacements can seem misleadingly like something that might be worth clicking on. On every video link, the extension adds a button to show the original title and thumbnail rather than the dearrowed one, and I did have to get in the habit of checking that before watching a video, but now I hardly think about it.