Instead of just throwing in comments form at the end of every article, Elegant offers you a way to write introductory text that would appear right before comments.

Set your message to comments_intro in the article metadata. You may also
define COMMENTS_INTRO in Pelican configuration.
Write whatever you think is appropriate to invite the visitor to comment. Be creative! You can even put a link to your twitter account or newsletter there.
Elegant first looks for comments_intro in article metadata, then for
COMMENTS_INTRO in configuration. If it finds neither then no message is displayed.