At the bottom of each member's account is a box that contains the highlighted links labeled "Mark this member as responsive" and "Mark this member as Unresponsive". Clicking on either of these links will add the following statement to the bottom of their account "X members have marked [username] as [un]responsive" where X is the number of members who have made this selection.
Recording a host's responsiveness is a relatively new feature. And many guests forget to use it. So if you don't find a member marked as either responsive or unresponsive you shouldn't read too much into it.
If unsure how to access a member's account the website search tool can help you locate it. Click here for assistance on using this search function.

To post a recommendation to the member's account click the link near the bottom of the page labeled "Click here to add a recommendation". On the "Create Member Recommendation" page which appears you simply need to type your comments into the box labeled "Please tell about your experience with this member:", fill in the year/month that you met this individual, identify them as your guest or your host, and then click the "Save" button at the bottom of the page.

Member recommendations are a nice way to publicly thank others. However, some members provide this feedback religiously while others do not. Hence do not assume that a member is not a good host because there are no recommendations associated with their accounts.

If you are unsure how to access a member's account the member search tool can help you locate it.