There will always be low-quality, badly researched or even off-topic questions. While this can be frustrating, it's important to remember that such questions don't necessarily represent a laziness, or indifference to your time/the site's aim (e.g. I'll just post a Q. and get someone to do the work for me), or a disregard for the site's rules and guidelines.
I've created 3 simple bookmarklets based on Stephen Harris Answer. They not only automatically insert the text in the comment field but also personalize the messages with the name of the user.
To use them just create a new bookmark in your browser and put the code below instead of the URL.
I am posting them here in case anyone else might be interested in ...
I just wanted to add to the great answer of @stephenharris:
though I couldn't find an exhaustive list.
how one can get to this list of comment shortcodes in two clicks:
Here's the direct link:
Here's a screenshot of the available shortcodes, just in case the link changes in the future:...