How do comments work?
Why am I unable to put my comments on others' questions and answers? This benefits me to discuss with others on the answers which are helpful to me.
migrated from stackoverflow.com May 28 '11 at 10:31
This question came from our site for professional and enthusiast programmers.
You only have a reputation score of 1 on Stack Overflow, which means that the questions and answers you've posted on the site so far have failed to receive any upvotes from other users.
Reputation is a rough measure of the quality of your contributions to the site, and thus indicates how much the community trusts you. As you gain reputation, you begin to accrue privileges. One of these privileges is the ability to comment on questions and answers.
You will not be able to comment on other people's posts until you have earned 50 reputation. The ability to posts comments on other people's posts is a privilege, and one that we unfortunately cannot unlock for new users in order to keep down noise on the site. New users also don't always understand the purpose of comments. Before you earn the privilege, we hope that you see how other users are using the comment feature and follow their example. Specifically, comments are intended for:
You say in your question that you might want to use comments to:
but remember that leaving "thank you" or "this really helped me" comments is strongly discouraged here. Instead, you should vote up the post you found helpful. (However, this does require 15 rep.)
Finally, it's worth noting that anyone (regardless of reputation) is able to comment on their own posts, and even on the answers that other people provide to their own questions.