Comments cannot be ageless unless the comment is wisdom. When we comment on something we are using a current knowledge, with a current feeling, while in a current situation. All of those are constantly changing so we do things that we don't always look back upon as favorable. If you want your comments, posts, or even hubs to be everlasting they have to be full of wisdom and facts, not fads and instances.
Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment.