The "recommended for you"    feature  seems to work  on tags. Now imagine you rated, bought or downloaded  a game that has  a tag   among many that  might not be quite accurate or only be a minor aspect of that game. And now imagine being bombarded with lots of games   in the "recommended for you" that have this tag as their main feature.

I for one would welcome the ability to exclude  or remove a tag that has sneaked into my recommended tag list. Just like I can tell Amazon to ignore a product for recommendations (if I buy   medical products for my granny,  I do not want to see ads for those...)