Updowner is it hurting sites?

this site is known to be spamming links .. it is on Google’s radar as there are numerous threads with the site on Google’ Webmaster Help Forum … I wouldn’t worry too much about it, but if you can get them not to link to you that is the best option

I would not register at this site, however I would block the bot. You don’t have to register to block it.

I just found this in the FAQs section:

How can I block my site from showing on Updowner?You have few methods to block your site from Updowner listing:

• Register your site with us.
If you have registered your site, you can block it in your admin panel (this is the quickest method). In a “Description” section there is an information about the site status, you can block or unblock your site there. Your site can be also blocked by Updowner admin, but if you feel that your site was blocked unfairly, please conntact us.

• A robots.txt file.
A robots.txt file restricts access to your site by robots that crawl the web. These bots are automated, and before they access pages of a site, they check to see if a robots.txt file exists, and if it prevents them from accessing certain pages. You need a robots.txt file only if your site includes content that you don’t want to indexed by bots. If you want to let bots index everything in your site, you don’t need a robots.txt file (not even an empty one).
Updownerbot won’t crawl pages blocked by robots.txt. In order to use a robots.txt file, you’ll need to have access to the root of your domain (if you’re not sure, check with your web hoster).

If you want to block Updownerbot from indexing your site type in your robots.txt:
User-agent: Updownerbot
Disallow: /

• Meta tags.
The noindex meta standard is described at The Web Robots Pages. This method is useful if you don’t have root access to your server, as it allows you to control access to your site on a page-by-page basis.

To prevent all robots from indexing your site, place the following meta tag into the section of your index page:

To prevent only Updownerbot from indexing:

Any good?

I don’t have that many links to my sites as I’m quite new to this but have a fair few from UpDowner.com – would those links removed benefit my site?