Underock, if you're talking about reputations comments made to you here's a bit more information on that and other things here that may be helpful. No apology needed.
If you click on "Settings" at the top of the forum page, it will take you to your personal page which shows Reputation points received by you, and given by you. Below the posts on the green line, the small star is what you click to give someone positive reputation. It's an easy way to say thanks or I agree, etc. to another member.
As members accumulate reputation points, the little green squares under their user names in their posts will increase. There is no way to reply to them, short of sending a private message. Normally, we are happy to receive rep points, and can say thanks by giving that person reputation when they have a message that is helpful to you, or that you agree with.
When you receive reputation, you are notified by "Notifications" at the top of the forum page. Click on that to see your new comment.
Here's a thread with some useful information, there's more on the forum main homepage under the Forum Support and Suggestions section, or feel free to send me a private message (PM) is you need help with anything or have any more questions.
https://www.seniorforums.com/showthread.php/1531-Getting-To-Know-Senior-Forums