Anybody use this in backlinking? I know it's grounds for sandbox, but I'm inclined to doubt for a few reasons. 1- if they penalize the site in the href it's an opp to sabotage competition pretty easily, hence hole in algorithm. 2- if they penalize the site with the link on it, any blog which allows html in the comments is subject to sabotage, hence hole in algorithm. If anybody has experience using this technique positive or negative I'd really love to hear, since it's a potentially valuable strategy. Thanks.