You provide for a star to be attached to a profile to show it as a favourite. I think it would be useful to be able to attach another symbol to a profile in a similar place to indicate you are not interested in that profile - it could be a red star. (You would not use both symbols on the same profile). Without such an indicator, you often go back to the same profile time and again, only to discover it is a profile you have seen before and in which you have no interest. Yes, you could block that profile but that is too drastic a step and is unwarranted. It also prevents you changing your mind about such a profile should, for example, the person contact you and you take a liking to the person and change your mind about your interest.