RTP is based around the idea of 'similar people', by comparing interests, competitiveness, etc. However, the only way to change is to change your 'profile', a non-trivial task, and we all have 'moods'.
For instance, I'm a 'lots of fun, reasonably competitive' profile at the moment, and it'll find me partners based on this. However, it doesn't say what features have suggested a buddy and which do not - for instance, it won't inform you that it suggested Annatar because he's fun-oriented, or that Tim on your friends list was depreciated because his computer sucks.
Further, sometimes you want a casual game. Sometimes you want a hard-fought no-holds-barred thing. This fits within the mechanisms of RTP, but not the way profiles are modified.
I thus suggest that the RTP window needs some buttons to allow you to shift your focus, similar to 'mood' or 'availability' buttons in other IM clients. If I come home and can't find anyone, I want to be able to 'relax network standard'. If I'm not sure who is best from a long list, I want to be able to 'make profile less casual and more competitive'. A few buttons would allow you to further filter the suggestion list without having to edit your profile every single time.
Similarly, I'd like icons to appear on buddies where their profile is exactly the same, or very different. For instance, if Annatar (sorry buddy ) is casual, has good computer, but hates competition, I'd like a blue 'fun' symbol and a red 'competition' symbol to be next to his name, informing me that we have 'fun' in common but are very different in 'competition'. Making lists sortable by these features would allow users to tune results without needing to trawl through each individual profile. It'd also make simply searching for users a bit easier.