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Correct, thanks for that correction. I do not think this would be considered blackhat.

Good questions; do you think you're under penalty now? If not, just work on cleaning up the future of your "link building" efforts rather than trying to go in reverse and fix things. A few answers to your questions: No, Google will not penalize you for having a profile that is "too clean." Google doesn't care if you "manipulate" your link profile. They care if you've built links to manipulate their ranking system. Anchor text is one big sign that you're attempting to increase your rankings for certain terms. Google is pretty good at targeting links you've built to increase rankings. The links that will hurt you are those you've built - not the junky links that everyone acquires over time. The only exception might be a spam attack from a competitor, but that's rare and another issue altogether. If you've built highly-targeted links, take those down. Don't waste your time taking down low-quality links that other people build to you. If you think links you haven't built are harming you, double-check WMT for a penalty and make sure there's no overly-targeted anchor text  stemming from your own efforts.

Jason, Thanks for your answer, yeah the issue that we have is that the site is a flash gaming site, and as you know flash is not running on Apple and really slow on other mobile devices, so the solution is to give access to only html5 games to our users rather than having huge bounce rates on flash based games. This said now, if my page /games list all the games for desktop, do you think it will be wise to keep this page and only show the html5 one to the mobile user, but this will give 2 different version of the page to google, or will it be better to create /games/mobile and don't let users that use mobile device see /games that should only be accessible if you are not using a mobile device. I am like you it will be better to keep everything under one domain rather than going for the subdomain route. Cheers,

Andrea, I guess you are right, and I think like you with all the test and experience I have, content seem to have its importance, but it's not the main key for a great ranking. I am going to spend sometime at looking at the inbound links from our competitor and try to see where we should may be be too Thanks again to take the time to help, really appreciate it Cheers,