I see a bunch of ratings on rigs lately, and that's a good thing. But, I have noticed that there are a few profiles that have low ratings, but sound pretty good to me. Others have a 5 star rating, and I think are horrible.
I think the rating system can be expanded, with a comments section for the rating, and even a genre for each person.
For example, you can put in the genres of music that you normally play, and it is tied to your profile. For me, this would be classic rock, hair metal, etc. I'm not into Djent at all. Not into the latest trends of detuning to drop C, etc.
Using that information, you can tell the genres of the people who rated the profiles. A profile that is rated a 5 for major drop tuning, will probably not get great ratings in other genres.
Coming from a programming background, this is a very easy, and very useful addition to RE.