Why not right click > copy link location then use the URL codes to put a Comment Me link in your about me or something?
Or you can just get an icon like this:
And put the URL tags around it so it's clickable like this:
i need something a comment button
so i dont have to have my comments burdening my profile.
[/color][url=http://www.gaiaonline.com/profiles/x/19048781/painted-on-my-memories/?mode=addcomment][color={whatever color you want}]leave me a comment[/color][/url]