zehrila, Google can *see* this sort of link as with any HTML code, they just don't pay any attention to it in terms of what would be beneficial effects of passing relevancy. As with any other on page content, if it is part of something that could be classed as a spam/black hat tactic it may be penalised. Google is constantly finding new ways to detect content that is not produced with human visitors in mind.
If you add content to your page intended purely at search engines, there is a good chance you will get a penalty now or at some point in the future. This is simple common sense.
There are *a lot* of people out there who simply don't understand the fundamental principles of search engines and concepts like how they try to improve the quality of their search results. Yes we don't know exactly how they work in many cases, but that does not mean that common sense can be suspended and ludicrous theories raised as equally likely to be true as something that actually make sense.