Allow convert-to-comment without confirmation and even if there are comments

This userscript allows moderators to use the "convert to comment" button even if the answer has comments. It also removes the annoying confirm() prompt when converting an answer to a comment. You …

SE Comment Link Helper

Converts raw question URLs to title-fied links automatically before submitting a comment

SE Modifications — Username autocomplete in comments, inline revision source, and utility links

Adds comment autocomplete (relatively) consistent with comment "@lert" rules, as well as a number of useful utility links, like history and timeline

Disable enter for submitting comments

This user script disables the default behavior of the enter key submitting a comment. With this script installed, you must explicitly click the Add Comment button to submit your comment. Source …

“Reply” links on comments

Reply to comments with a single click

Threaded comments

Display comments on questions and answers in conversation threads instead of linearly