Paintings I Love aims to be a welcoming, supportive environment where artists can receive complimentary comments on their works and constructive criticism. Abuse, disrepect and rudeness will not be tolerated. A full list of guidelines is available here.
Comments let you give feedback to artists about what you like in their picture and ask questions on technique. Leaving comments is also the best way to get comments back on your own pictures, as a thumbnail of your most popular picture is automatically shown next to your name, and the people you are commenting on often check out the work of those commenting on theirs.
To reply to a specific comment, click the 'reply' link under the comment. An entry area will open up for you to type in your reply.
Replies can be made by anybody, not just the artist, so that there can be a conversation under any comment.